1. Department of Psychiatry, University of Sao Paulo Medical School, Sao Paulo, Brazil,
2. Department of Psychiatry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil,
3. Department of Collective Health, Institute of Tropical Pathology and Public Health, Federal University of Goias, Goiania, Brazil, and
4. Department of Psychiatry, Federal University of Sao Paulo, Sao Paulo, Brazil