TY - JOUR AU - den Braber, A; de Geus, E J; Boomsma, D I TI - Obsessive-compulsive symptoms and related sex differences in brain structure: An MRI study in Dutch twins JO - Twin Res Hum Genet VL - 16 PY - 2013 DO - 10.1017/thg.2013.10 L3 - PubMed-ID: 23527678 SP - 516 EP - 524 N1 - et al. ER -