- Mathews, Carol;
- Sampaio, AS;
- Hounie, AG;
- Petribú, K;
- Cappi, C;
- Morais, I;
- Vallada, H;
- do, MC;
- Stewart, SE;
- Fargeness, J
Obsessive-compulsive disorder (OCD) is a common and debilitating psychiatric illness. Although a genetic component contributes to its etiology, no single gene or mechanism has been identified to the OCD susceptibility. The catechol-O-methyltransferase (COM