title: Sex differences in age at first affective episode.
authors.forename: N R
authors.initials: NR
authors.lastname: Krasa
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D017668:Age of Onset; D001714:Bipolar Disorder / Q000175:diagnosis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D017678:Sex Distribution