[1] Univ Sao Paulo, Obsess Compuls Spectrum Disorders Program PROTOC, Dept Psychiat, Sch Med, BR-01060970 Sao Paulo, Brazil
[2] Univ Sao Paulo, Sch Med, Inst Psychiat, BR-01060970 Sao Paulo, Brazil
[3] Brown Univ, Dept Psychiat & Human Behav, Warren Alpert Med Sch, Providence, RI 02912 USA
[4] Brown Univ, Dept Clin Neurosci Neurosurg, Warren Alpert Med Sch, Providence, RI 02912 USA
[5] Hosp Santa Paulo, Inst Neurol Radiosurg, Sao Paulo, Brazil
[6] Univ Fed Sao Paulo, Dept Psychiat, Sao Paulo, Brazil
[7] FMUSP, Inst Heart, INCOR, Sao Paulo, Brazil
[8] FMUSP, Dept Radiol, Sao Paulo, Brazil