title: Season-of-birth effect reveals the existence of etiologically different groups of schizophrenia.
authors.affiliation: Department of Psychiatry, University of Wuerzburg, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Franzek
authors.forename: H
authors.initials: H
authors.lastname: Beckmann
mesh_terms: D003527:Cyclothymic Disorder / Q000209:etiology* / Q000235:genetics / Q000523:psychology; D006801:Humans; D011569:Psychiatric Status Rating Scales; D012307:Risk Factors; D012559:Schizophrenia / Q000209:etiology* / Q000235:genetics; D012565:Schizophrenic Psychology; D012621:Seasons; D012931:Social Environment