1. Projeto Transtornos do Espectro Obsessivo-Compulsivo (PROTOC, Obsessive-Compulsive Spectrum Disorders Project), Department and Institute of Psychiatry, School of Medicine; Universidade de São Paulo (USP); São Paulo; Brazil
2. Departament of Neurology Psychology and Psychiatry, Botucatu Medical School; Univ Estadual Paulista (UNESP); Botucatu, SP; Brazil
3. Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA); Porto Alegre; RS; Brazil
4. Department of Dermatology, School of Medicine; Universidade de São Paulo (USP); São Paulo; Brazil
5. Department of Psychiatry and Psychology, School of Medicine; Universidade Federal de São Paulo (UNIFESP); São Paulo; Brazil
6. The Anxiety and Depression Research Program, Institute of Psychiatry, School of Medicine; Universidade Federal do Rio de Janeiro (UFRJ); Rio de Janeiro; Brazil
7. Department of Statistics, Institute of Mathematics and Statistics; Universidade de São Paulo; São Paulo; Brazil