Adults With Early-Onset Obsessive-Compulsive Disorder - Rosario-Campos, Maria Conceição; Leckman, James F.; Mercadante, Marcos Tomanik; Shavitt, Roseli Gedanke; Prado, Helena da Silva; Sada, Patrícia; Zamignani, Denis; Miguel Filho, Euripedes Constantino (The American Journal of Psychiatry, 2001)