title: Obstetric complications and twin studies of schizophrenia: clarifications and affirmations.
mesh_terms: D001724:Birth Weight; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D007744:Obstetric Labor Complications; D011247:Pregnancy; D012107:Research Design; D012306:Risk; D012559:Schizophrenia / Q000209:etiology / Q000235:genetics*