1 Postgraduate Program in Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
2 Medical Genetics Service, Hospital de ClÃnicas de Porto Alegre, Porto Alegre, Brazil
3 Postgraduate Program in Medical Sciences: Psychiatry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
4 Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil