title: A systematic view of depression.
mesh_terms: D001290:Attitude; D001521:Behavior Therapy; D002657:Child Development; D003861:Depersonalization; D003863:Depression / Q000175:diagnosis / Q000209:etiology / Q000628:therapy*; D005086:Existentialism; D006706:Homeostasis; D006801:Humans; D010553:Personality Development; D011574:Psychoanalytic Theory; D011581:Psychological Tests; D011582:Psychological Theory; D011613:Psychotherapy; D014163:Transfer, Psychology