title: The classification of depressions: a review of contemporary confusion.
mesh_terms: D000275:Adjustment Disorders / Q000145:classification; D000328:Adult; D000342:Affective Symptoms / Q000145:classification; D000367:Age Factors; D001714:Bipolar Disorder / Q000145:classification; D003863:Depression / Q000145:classification* / Q000209:etiology / Q000235:genetics; D003865:Major Depressive Disorder / Q000145:classification; D006801:Humans; D001523:Mental Disorders / Q000150:complications; D011618:Psychotic Disorders / Q000145:classification; D012744:Sex Ratio; D013315:Stress, Psychological; D014944:World Health Organization