title: The genetic theory of schizophrenia. An analysis of 691 schizophrenic twin index families. 1946.
authors.forename: F J
authors.initials: FJ
authors.lastname: Kallmann
mesh_terms: D004200:Diseases in Twins / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D011570:Psychiatry / Q000266:history; D012559:Schizophrenia / Q000266:history*