1 Department of Psychiatry, Universidade Federal do Paraná (UFPR), Curitiba, PR, Brazil. Laboratory of Molecular Psychiatry, Centro de Pesquisa Experimental (CPE) and Centro de Pesquisa Clínica (CPC), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil. Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
2 Department of Psychiatry, University of São Paulo (USP), São Paulo, SP, Brazil. Behavioral Addiction and Impulse Control Disorder programs, Institute of Psychiatry, University of São Paulo (USP), São Paulo, SP, Brazil.
3 Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
4 Laboratory of Molecular Psychiatry, Centro de Pesquisa Experimental (CPE) and Centro de Pesquisa Clínica (CPC), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil. Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.