title: [The problem of melancholia in current literature].
mesh_terms: D001714:Bipolar Disorder; D003863:Depression; D003866:Depressive Disorder; D003865:Major Depressive Disorder; D006801:Humans; D001523:Mental Disorders; D011618:Psychotic Disorders
keywords: DEPRESSION; PSYCHOSES, INVOLUTIONAL; PSYCHOSES, MANIC-DEPRESSIVE