title: Depressive disease: classification and clinical characteristics.
mesh_terms: D000293:Adolescent; D000328:Adult; D000342:Affective Symptoms / Q000145:classification; D000367:Age Factors; D000368:Aged; D003863:Depression / Q000145:classification* / Q000175:diagnosis*; D005191:Family Characteristics; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012737:Sex Factors