Birth rank and mental illness.
D000328:Adult; D001722:Birth Order; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012559:Schizophrenia / Q000453:epidemiology / Q000209:etiology*; D013997:Time Factors; D006113:United Kingdom; D014481:United States