[1] Univ Fed Rio Grande Sul, Programa Posgrad Ciencias Med, Porto Alegre, RS, Brazil
[2] Hosp Clin Porto Alegre, Ctr Pesquisas, Programa Transtorno Bipolar, Porto Alegre, RS, Brazil
[3] Univ Fed Rio Grande Sul, Inst Ciencias Bas Saude, Dept Bioquim, Porto Alegre, RS, Brazil
[4] Univ Fed Rio Grande Sul, Dept Genet, Porto Alegre, RS, Brazil