title: Research is changing views on obsessive-compulsive disorder.
mesh_terms: D001921:Brain / Q000378:metabolism; D006801:Humans; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis* / Q000378:metabolism / Q000523:psychology; D012106:Research; D012701:Serotonin / Q000378:metabolism
chemical_list: D012701:Serotonin