On Hesperian depression.
D000339:Affect; D000374:Aggression; D002940:Circadian Rhythm; D003624:Darkness; D003863:Depression / Q000628:therapy; D004532:Ego; D006801:Humans; D007989:Libido; D008027:Light; D008093:Literature, Modern; D008568:Memory; D010507:Periodicity; D011037:Poetry as Topic; D011573:Psychoanalytic Interpretation; D011575:Psychoanalytic Therapy; D012094:Repression, Psychology