title: Major depressive disorder: epidemiology, course of illness, and treatment.
authors.affiliation: Depression Clinical and Research Program, Massachusetts General Hospital, Boston, MA, USA.
authors.forename: Andrew A
authors.initials: AA
authors.lastname: Nierenberg
mesh_terms: D015897:Comorbidity; D003865:Major Depressive Disorder / Q000150:complications / Q000453:epidemiology* / Q000628:therapy; D005260:Female; D006801:Humans; D008297:Male; D013315:Stress, Psychological / Q000150:complications; D016896:Treatment Outcome; D014481:United States / Q000453:epidemiology