Personal distress as a mediator between self-esteem, self-efficacy, loneliness and problematic video gaming in female and male emerging adult gamers

Autoři: Andrzej Cudo aff001;  Natalia Kopiś aff001;  Emilia Zabielska-Mendyk aff001
Působiště autorů: Department of Experimental Psychology, The John Paul II Catholic University of Lublin, Lublin, Poland aff001
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article


The aim of our research was to investigate the predictors of Problematic Video Gaming (PVG) in emerging adulthood. From among the factors which were considered significant in previous studies, we decided to include the following in our research: empathy, self-esteem, self-efficacy and loneliness. Additionally, we wanted to examine which predictors have a direct or indirect effect on PVG in female and male emerging adult gamers group. Including a sample of 370 video game players (201 female gamers) aged 18–30 years (M = 21.66 years, SD = 2.83) participated in this study and were asked to complete self-report measures. The questionnaires included: Problem Videogame Playing Questionnaire, The Interpersonal Reactivity Index, Rosenberg Self-Esteem Scale, De Jong Gierveld Loneliness Scale, General Self-Efficacy Scale. Our results indicate that empathy dimension associated with personal distress, the time spent playing computer games per week is directly associated with PVG. Also, there were found full mediation between self-esteem, loneliness, self-efficacy and PVG via personal distress in emerging adult male gamers group. In emerging adult female gamers group personal distress fully mediated relation between self-esteem, self-efficacy and PVG. Our findings indicate that the time spent playing video games, as well as personal distress as a function of self-esteem, loneliness and self-efficacy, are predictors of problematic video gaming. Additionally, our results may lead to a better understanding of PVG among emerging adults. In particular, they may point to the importance of personal distress in relation to PVG during emerging adulthood, which is a developmental stage of many changes in social and professional life.

Klíčová slova:

Adults – Behavior – Emotions – Games – Internet – Interpersonal relationships – Psychometrics – Video games


1. ESA. Essential Facts About the Computer and Video Game Industry; 20 Apr 2018 [cited 12 May 2019] Available:

2. UKIE. Video Games Fact Sheet; 20 Oct 2018 [cited 12 May 2019] Available:

3. Kim EJ, Namkoong K, Ku T, Kim SJ. The relationship between online game addiction and aggression, self-control and narcissistic personality traits. European psychiatry. 2008;23(3):212–8. doi: 10.1016/j.eurpsy.2007.10.010 18166402

4. Bobrowski M, Rodzińska-Szary P, Socha, M. Kondycja polskiej branży gier wideo. Raport 2015. Kraków: Krakowski Park Technologiczny; 2015.

5. Yee N. The labor of fun: How video games blur the boundaries of work and play. Games and culture. 2006;1(1):68–71.

6. Bediou B, Adams DM, Mayer RE, Tipton E, Green CS, Bavelier D. Meta-analysis of action video game impact on perceptual, attentional, and cognitive skills. Psychological bulletin. 2018;144(1):77. doi: 10.1037/bul0000130 29172564

7. Cudo A, Kopiś N, Stróżak P, Zapała D. Problematic video gaming and problematic internet use among polish young adults. Cyberpsychology, Behavior, and Social Networking. 2018;21(8):523–9.

8. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V). Arlington: VA American Psychiatric Publishing; 2013.

9. Griffiths MD, Pontes HM. Internet addiction disorder and internet gaming disorder are not the same. Journal of Addiction Research and Therapy. 2014;5:e124.

10. Brand M, Young KS, Laier C, Wölfling K, Potenza MN. Integrating psychological and neurobiological considerations regarding the development and maintenance of specific Internet-use disorders: An Interaction of Person-Affect-Cognition-Execution (I-PACE) model. Neuroscience & Biobehavioral Reviews. 2016;71:252–66.

11. Kuss DJ, Griffiths MD. Internet gaming addiction: A systematic review of empirical research. International Journal of Mental Health and Addiction. 2012;10(2):278–96.

12. Lemmens JS, Valkenburg PM, Gentile DA. The Internet gaming disorder scale. Psychological assessment. 2015;27(2):567–82. doi: 10.1037/pas0000062 25558970

13. Long J, Liu T, Liu Y, Hao W, Maurage P, Billieux J. Prevalence and correlates of problematic online gaming: a systematic review of the evidence published in Chinese. Current Addiction Reports.2018;5(3):359–71.

14. Saunders JB, Hao W, Long J, King DL, Mann K, Fauth-Bühler M, et al. Gaming disorder: Its delineation as an important condition for diagnosis, management, and prevention. Journal of Behavioral Addictions. 2017;6(3):271–79. doi: 10.1556/2006.6.2017.039 28816494

15. Wittek CT, Finserås TR, Pallesen S, Mentzoni RA, Hanss D, Griffiths MD, Molde H. Prevalence and predictors of video game addiction: A study based on a national representative sample of gamers. International journal of mental health and addiction. 2016;14(5):672–86. doi: 10.1007/s11469-015-9592-8 27688739

16. Ream GL, Elliott LC, Dunlap E. Trends in Video Game Play through Childhood, Adolescence, and Emerging Adulthood. Psychiatry Journal, 2013; 1–7.

17. Arnett JJ. Identity development from adolescence to emerging adulthood: What we know and (especially) don’t know. In: McLean KC, Syed M, editors. The Oxford Handbook of Identity Development. New York, Oxford Library of Psychology; 2015. pp. 1–21.

18. Arnett JJ, Žukauskienė R, Sugimura K. The new life stage of emerging adulthood at ages 18–29 years: Implications for mental health. The Lancet Psychiatry. 2014;1(7):569–76. doi: 10.1016/S2215-0366(14)00080-7 26361316

19. Arnett JJ. Emerging adulthood: A theory of development from the late teens through the twenties. American psychologist. 2000;55(5):469–80. 10842426

20. Schwartz SJ, Petrova M. Prevention science in emerging adulthood: A field coming of age. Prevention Science. 2019;20(3):305–09. doi: 10.1007/s11121-019-0975-0 30637671

21. Plante CN, Gentile DA, Groves CL, Modlin A, Blanco-Herrera J. Video games as coping mechanisms in the etiology of video game addiction. Psychology of Popular Media Culture.2019;8(4):385–94.

22. Von Der Heiden JM, Braun B, Müller KW, Egloff B. The association between video gaming and psychological functioning. Frontiers in psychology. 2019;10:1731. doi: 10.3389/fpsyg.2019.01731 31402891

23. Ballarotto G, Volpi B, Marzilli E, Tambelli R. Adolescent Internet abuse: A study on the role of attachment to parents and peers in a large community sample. BioMed research international. 2018; 1–10.

24. Li H, Zou Y, Wang J, Yang X. Role of stressful life events, avoidant coping styles, and neuroticism in online game addiction among college students: a moderated mediation model. Frontiers in psychology. 2016;7:1794. doi: 10.3389/fpsyg.2016.01794 27920734

25. Przepiorka A, Blachnio A, Cudo A. The role of depression, personality, and future time perspective in internet addiction in adolescents and emerging adults. Psychiatry research. 2019;272:340–48. doi: 10.1016/j.psychres.2018.12.086 30599437

26. Khazaal Y, Chatton A, Rothen S, Achab S, Thorens G, Zullino D, Gmel G. Psychometric properties of the 7-item game addiction scale among french and German speaking adults. BMC psychiatry. 2016;16(1):132.

27. Mentzoni RA, Brunborg GS, Molde H, Myrseth H, Skouverøe KJM, Hetland J, Pallesen S. Problematic video game use: estimated prevalence and associations with mental and physical health. Cyberpsychology, behavior, and social networking. 2011;14(10):591–96.

28. Paaßen B, Morgenroth T, Stratemeyer M. What is a true gamer? The male gamer stereotype and the marginalization of women in video game culture. Sex Roles. 2017;76(7–8):421–35.

29. Hartmann T, Möller I, Krause C. Factors underlying male and female use of violent video games. New Media & Society. 2015;17(11):1777–94.

30. Hartmann T, Klimmt C. Gender and computer games: Exploring females’ dislikes. Journal of Computer-Mediated Communication. 2006;11(4):910–31.

31. Lopez-Fernandez O, Williams AJ, Griffiths MD, Kuss DJ. Female gaming, gaming addiction, and the role of women within gaming culture: A narrative literature review. Frontiers in Psychiatry. 2019;10:454. doi: 10.3389/fpsyt.2019.00454 31354536

32. Rehbein F, Staudt A, Hanslmaier M, Kliem S. Video game playing in the general adult population of Germany: Can higher gaming time of males be explained by gender specific genre preferences?. Computers in human behavior. 2016;55:729–35.

33. Laconi S, Pirès S, Chabrol H. Internet gaming disorder, motives, game genres and psychopathology. Computers in human behavior. 2017;75:652–59.

34. Maroney N, Williams BJ, Thomas A, Skues J, Moulding R. A stress-coping model of problem online video game use. International Journal of Mental Health and Addiction. 2019;17(4):845–58.

35. Jenzer T, Read JP, Naragon‐Gainey K, Prince MA. Coping trajectories in emerging adulthood: The influence of temperament and gender. Journal of personality. 2019;87(3):607–19. doi: 10.1111/jopy.12419 29999532

36. Lemmens JS, Valkenburg PM, Peter J. Psychosocial causes and consequences of pathological gaming. Computers in human behavior. 2011;27(1):144–52.

37. Scerri M, Anderson A, Stavropoulos V, Hu E. Need fulfilment and internet gaming disorder: A preliminary integrative model. Addictive behaviors reports. 2019;9:100144. doi: 10.1016/j.abrep.2018.100144 31193898

38. Behm-Morawitz E, Mastro D. The effects of the sexualization of female video game characters on gender stereotyping and female self-concept. Sex roles. 2009;61(11–12):808–23.

39. Caplan S, Williams D, Yee N. Problematic Internet use and psychosocial well-being among MMO players. Computers in human behavior. 2009;25(6):1312–9.

40. Shen C, Williams D. Unpacking time online: Connecting internet and massively multiplayer online game use with psychosocial well-being. Communication Research. 2011;38(1):123–49.

41. Wood D, Crapnell T, Lau L, Bennett A, Lotstein D, Ferris M, Kuo A. Emerging adulthood as a critical stage in the life course. In: Halfon N, Forrest C, Lerner R, Faustman E, editors. Handbook of life course health development. Cham: Springer; 2018. pp. 123–43.

42. Orth U, Erol RY, Luciano EC. Development of self-esteem from age 4 to 94 years: A meta-analysis of longitudinal studies. Psychological bulletin. 2018:144(10);1045–80. doi: 10.1037/bul0000161 30010349

43. Lee CYS, Goldstein SE. Loneliness, stress, and social support in young adulthood: Does the source of support matter?. Journal of youth and adolescence. 2016;45(3):568–80. doi: 10.1007/s10964-015-0395-9 26602564

44. Passanisi A, Gervasi AM, Madonia C, Guzzo G, Greco D. Attachment, self-esteem and shame in emerging adulthood. Procedia-Social and Behavioral Sciences. 2015;191:342–46.

45. Estevez A, Jauregui P, Sanchez-Marcos I, Lopez-Gonzalez H, Griffiths MD. Attachment and emotion regulation in substance addictions and behavioral addictions. Journal of behavioral addictions. 2017;6(4):534–44. doi: 10.1556/2006.6.2017.086 29280395

46. Grühn D, Rebucal K, Diehl M, Lumley M, Labouvie-Vief G. Empathy across the adult lifespan: Longitudinal and experience-sampling findings. Emotion. 2008;8(6);753–65. doi: 10.1037/a0014123 19102586

47. Davis MH. A Mulitdimensional Approach to Individual Differences in Empathy. Journal of Personality and Social Psychology. 1983;44(1):113–126.

48. Fernandez AM, Dufey M, Kramp U. Testing the psychometric properties of the Interpersonal Reactivity Index (IRI) in Chile: Empathy in a different cultural context. European Journal of Psychological Assessment. 2011;27(3):179–185.

49. Guo Q, Sun P, Li L. Why neurotic individuals are less prosocial? A multiple mediation analysis regarding related mechanisms. Personality and Individual Differences. 2018;128:55–61.

50. Huang X, Li W, Sun B, Chen H, Davis MH. The validation of the Interpersonal Reactivity Index for Chinese teachers from primary and middle schools. Journal of Psychoeducational Assessment. 2012;30(2):194–204.

51. Gómez-López M, Viejo C, Ortega-Ruiz R. Well-Being and Romantic Relationships: A Systematic Review in Adolescence and Emerging Adulthood. International journal of environmental research and public health. 2019;16(13):2415.

52. Ulloa EC, Hammett JF, Meda NA, Rubalcaba SJ. Empathy and Romantic Relationship Quality Among Cohabitating Couples: An Actor–Partner Interdependence Model. The Family Journal. 2017;25(3):208–14.

53. Galinsky AM, Sonenstein FL. The association between developmental assets and sexual enjoyment among emerging adults. Journal of Adolescent Health. 2011;48(6):610–15. doi: 10.1016/j.jadohealth.2010.09.008 21575822

54. Cohen S, Schulz MS, Weiss E, Waldinger RJ. Eye of the beholder: The individual and dyadic contributions of empathic accuracy and perceived empathic effort to relationship satisfaction. Journal of Family Psychology. 2012;26(2):236–45. doi: 10.1037/a0027488 22369462

55. Brown JD. Self-esteem and self- evaluations: Feeling is believing. In: Suls J, editor. Psychological perspectives on the self. Volume 4. Hillsdale, NJ:Erlbaum; 1993. pp. 27–58.

56. Koronczai B, Kökönyei G, Urbán R, Kun B, Pápay O, Nagygyörgy K, Griffiths MD, Demetrovics Z. The mediating effect of self-esteem, depression and anxiety between satisfaction with body appearance and problematic internet use. The American journal of drug and alcohol abuse. 2013;39(4):259–65. doi: 10.3109/00952990.2013.803111 23841866

57. Perlman D, Peplau LA. Toward a social psychology of loneliness. Personal relationships. 1981;3:31–56.

58. Chou C, Tsai MJ. Gender differences in Taiwan high school students’ computer game playing. Computers in Human Behavior. 2007;23(1):812–24.

59. McLean L, Griffiths MD. Female gamers’ experience of online harassment and social support in online gaming: a qualitative study. International Journal of Mental Health and Addiction. 2019;17(4):970–94.

60. Bandura A. Social cognitive theory for personal and social change by enabling media. In: Entertainment-education and social change. Routledge; 2003. pp. 97–118.

61. Klimmt C, Hartmann T, Frey A. Effectance and control as determinants of video game enjoyment. Cyberpsychology & behavior. 2007;10(6):845–8.

62. Terlecki M, Brown J, Harner-Steciw L, Irvin-Hannum J, Marchetto-Ryan N, Ruhl L, Wiggins J. Sex differences and similarities in video game experience, preferences, and self-efficacy: Implications for the gaming industry. Current Psychology. 2011;30(1):22–33.

63. De Corte K, Buysse A, Verhofstadt LL, Roeyers H, Ponnet K, Davis MH. Measuring empathic tendencies: Reliability and validity of the Dutch version of the Interpersonal Reactivity Index. Psychologica Belgica. 2007;47(4):235–60.

64. Lucas-Molina B, Pérez-Albéniz A, Ortuño-Sierra J, Fonseca-Pedrero E. Dimensional structure and measurement invariance of the Interpersonal Reactivity Index (IRI) across gender. Psicothema. 2017;29(4):590–5. doi: 10.7334/psicothema2017.19 29048323

65. Tomei A, Besson J, Grivel J. Linking empathy to visuospatial perspective-taking in gambling addiction. Psychiatry research. 2017;250:177–84. doi: 10.1016/j.psychres.2016.12.061 28161613

66. Melchers M, Li M, Chen Y, Zhang W, Montag C. Low empathy is associated with problematic use of the Internet: Empirical evidence from China and Germany. Asian journal of psychiatry. 2015;17:56–60. doi: 10.1016/j.ajp.2015.06.019 26233696

67. Jeong H, Lee Y. Smartphone addiction and empathy among nursing students. Advanced Science and Technology Letters. 2015;88:224–8.

68. Aarseth E, Bean AM, Boonen H, Colder Carras M, Coulson M, Das D, Deleuze J, Dunkels E, Edman J, Ferguson CJ, Haagsma MC. Scholars’ open debate paper on the World Health Organization ICD-11 Gaming Disorder proposal. Journal of Behavioral Addictions. 2017;6(3):267–70. doi: 10.1556/2006.5.2016.088 28033714

69. Quandt T. Stepping back to advance: Why IGD needs an intensified debate instead of a consensus: Commentary on: Chaos and confusion in DSM-5 diagnosis of Internet Gaming Disorder: Issues, concerns, and recommendations for clarity in the field (Kuss et al.). Journal of behavioral addictions. 2017;6(2):121–3. doi: 10.1556/2006.6.2017.014 28301967

70. Mihara S, Higuchi S. Cross‐sectional and longitudinal epidemiological studies of Internet gaming disorder: A systematic review of the literature. Psychiatry and clinical neurosciences. 2017;71(7):425–44. doi: 10.1111/pcn.12532 28436212

71. Tejeiro RA, Espada JP, Gonzalvez MT, Christiansen P. Psychometric properties of the Problem Video Game Playing scale in adults. Revue Européenne de Psychologie Appliquée/European Review of Applied Psychology. 2016;66(1):9–13.

72. Lopez-Fernandez O, Honrubia-Serrano ML, Baguley T, Griffiths MD. Pathological video game playing in Spanish and British adolescents: Towards the exploration of Internet Gaming Disorder symptomatology. Computers in human behavior. 2014;41:304–12.

73. King DL, Haagsma MC, Delfabbro PH, Gradisar M, Griffiths MD. Toward a consensus definition of pathological video-gaming: A systematic review of psychometric assessment tools. Clinical psychology review. 2013;33(3):331–342. doi: 10.1016/j.cpr.2013.01.002 23396015

74. Pontes HM, Griffiths MD. Measuring DSM-5 Internet gaming disorder: Development and validation of a short psychometric scale. Computers in human behavior. 2015;45:137–143.

75. Schivinski B, Brzozowska-Woś M, Buchanan EM, Griffiths MD, Pontes HM. Psychometric assessment of the internet gaming disorder diagnostic criteria: an item response theory study. Addictive Behaviors Reports. 2018;8:176–184. doi: 10.1016/j.abrep.2018.06.004 30505924

76. Kaźmierczak M, Plopa M. Skala Wrażliwości Empatycznej. Przegląd Psychologiczny. 2007;50(1):9–24.

77. Rosenberg M. Society and the adolescent self-image. NewYork: Princeton University Press; 1965.

78. Łaguna M, Lachowicz-Tabaczek K, Dzwonkowska I. Skala samooceny SES Morrisa Rosenberga–polska adaptacja metody. Psychologia społeczna. 2007;2(2):164–176.

79. De Jong Gierveld J, Van Tilburg T. Living arrangements of older adults in the Netherlands and Italy: Coresidence values and behaviour and their consequences for loneliness. Journal of Cross-Cultural Gerontology. 1999;14(1):1–24. doi: 10.1023/a:1006600825693 14617893

80. Grygiel P, Humenny G, Rebisz S, Świtaj P, Sikorska J. Validating the Polish Adaptation of the 11-Item De Jong Gierveld Loneliness Scale. European Journal of Psychological Assessment. 2013;29(2):129–139.

81. Schwarzer R, Jerusalem M. Optimistic Self-Beliefs as a Resource Factor in Coping with Stress. In: Hobfoll SE, deVries MW, editors. Extreme Stress and Communities: Impact and Intervention. Dordrecht: Springer Netherlands; 1995. pp. 159–177.

82. Schwarzer R, Jerusalem M, Juczyński Z. Skala Uogólnionej Własnej Skuteczności–GSES. In: Juczyński Z, editor. Narzędzia Pomiaru w Promocji i Psychologii Zdrowia. Warszawa: Pracownia Testów Psychologicznych PTP; 2007. pp. 112–122.

83. Byrne BM. Structural equation modeling with AMOS: Basic concepts, applications, and programming. New York: Taylor & Francis Group; 2016.

84. Kline RB. Principles and practice of structural equation modeling. Guilford Publications; 2011.

85. Bollen KA, Stine R. Direct and indirect effects: Classical and bootstrap estimates of variability. Sociological methodology. 1990;1:115–40.

86. Shrout P, Bolger N. Mediation in experimental and nonexperimental studies: New procedures and recommendations. Psychological Methods. 2002;7(4):422–45. 12530702

87. Petry NM, Rehbein F, Gentile DA, Lemmens JS, Rumpf HJ, Mößle T, Bischof G, Tao R, Fung DS, Borges G, Auriacombe M. An international consensus for assessing internet gaming disorder using the new DSM‐5 approach. Addiction. 2014;109(9):1399–406. doi: 10.1111/add.12457 24456155

88. Griffiths MD, Van Rooij AJ, Kardefelt‐Winther D, Starcevic V, Király O, Pallesen S, Müller K, Dreier M, Carras M, Prause N, King DL. Working towards an international consensus on criteria for assessing Internet gaming disorder: A critical commentary on Petry et al.(2014). Addiction. 2016;111(1):167–75. doi: 10.1111/add.13057 26669530

89. Lemmens JS, Hendriks SJ. Addictive online games: Examining the relationship between game genres and Internet gaming disorder. Cyberpsychology, Behavior, and Social Networking. 2016;19(4):270–6.

90. Arbuckle JL. Amos 22 user’s guide. Chicago, IL: SPSS. 2013.

91. MacKinnon DP, Fairchild AJ, Fritz MS. Mediation analysis. Annual Review of Psychology. 2007;58:593–614. doi: 10.1146/annurev.psych.58.110405.085542 16968208

92. Eisenberg N, Fabes RA, Murphy B, Karbon M, Maszk P, Smith M, O'Boyle C, Suh K. The relations of emotionality and regulation to dispositional and situational empathy-related responding. Journal of Personality and Social Psychology. 1994;66(4):776–97. doi: 10.1037//0022-3514.66.4.776 8189352

93. Okun MA, Shepard SA, Eisenberg N. The relations of emotionality and regulation to dispositional empathy-related responding among volunteers-in-training. Personality and Individual Differences. 2000;28(2):367–82.

94. Liu M, Peng W. Cognitive and psychological predictors of the negative outcomes associated with playing MMOGs (massively multiplayer online games). Computers in Human Behavior. 2009;25(6):1306–11.

95. Thomas JT. Does personal distress mediate the effect of mindfulness on professional quality of life?. Advances in social work. 2012;13(3):561–85.

96. Niemz K, Griffiths M, Banyard P. Prevalence of pathological Internet use among university students and correlations with self-esteem, the General Health Questionnaire (GHQ), and disinhibition. Cyberpsychology & behavior. 2005;8(6):562–70.

97. Rokach A. The Effect of Gender and Culture on Loneliness: A Mini Review. Emerging Science Journal. 2018;2(2):59–64.

98. Morahan-Martin J, Schumacher P. Loneliness and social uses of the Internet. Computers in Human Behavior. 2003;19(6):659–71.

99. Thompson SH, Lougheed E. Frazzled by Facebook? An exploratory study of gender differences in social network communication among undergraduate men and women. College student journal. 2012;46(1):88–99.

100. Barry CM, Chiravalloti L, May E. Emerging Adults' Psychosocial Adjustment: Does a Best Friend's Gender Matter?. Psi Chi Journal of Psychological Research 2013;18(3):94–102.

101. Givertz M, Segrin C. The association between overinvolved parenting and young adults’ self-efficacy, psychological entitlement, and family communication. Communication Research. 2014;41(8):1111–36.

102. Smahel D, Blinka L, Ledabyl O. Playing MMORPGs: Connections between addiction and identifying with a character. CyberPsychology & Behavior. 2008;11(6):715–8.

103. Przybylski AK, Weinstein N, Ryan RM, Rigby CS. Having to versus wanting to play: Background and consequences of harmonious versus obsessive engagement in video games. CyberPsychology & Behavior. 2009;12(5):485–92.

104. Ferguson CJ, Coulson M, Barnett J. A meta-analysis of pathological gaming prevalence and comorbidity with mental health, academic and social problems. Journal of psychiatric research. 2011;45(12):1573–8. doi: 10.1016/j.jpsychires.2011.09.005 21925683

105. Hamlen KR. Re-examining gender differences in video game play: Time spent and feelings of success. Journal of Educational Computing Research. 2010;43(3):293–308.

106. Kardefelt-Winther D. A conceptual and methodological critique of internet addiction research: Towards a model of compensatory internet use. Computers in Human Behavior. 2014;31:351–4.

107. Yau YH, Crowley MJ, Mayes LC, Potenza MN. Are Internet use and video-game-playing addictive behaviors? Biological, clinical and public health implications for youths and adults. Minerva psichiatrica. 2012;53(3):153–70. 24288435

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