title: Depression in a pair of identical twins: the narcissistic dyad.
mesh_terms: D000328:Adult; D003866:Depressive Disorder / Q000235:genetics* / Q000523:psychology; D004200:Diseases in Twins; D004532:Ego; D005260:Female; D006801:Humans; D007207:Individuation; D008297:Male; D009289:Narcissism; D009769:Object Attachment; D010553:Personality Development; D011247:Pregnancy; D012931:Social Environment; D014430:Twins, Monozygotic