1. Department of Mental Health; Federal University of Minas Gerais Medical School; Belo Horizonte MG Brazil
2. Department of Psychiatry; University of Pittsburgh Medical School; Pittsburgh PA USA
3. René Rachou Research Center; Oswaldo Cruz Foundation; Belo Horizonte MG Brazil
4. Department of Social and Preventive Medicine; Federal University of Minas Gerais Medical School; Belo Horizonte MG Brazil