Sadomasochism and developmental stages.
D000328:Adult; D005201:Fantasy; D005260:Female; D006716:Homosexuality; D006801:Humans; D008297:Male; D008398:Masochism; D009769:Object Attachment; D011574:Psychoanalytic Theory; D011575:Psychoanalytic Therapy; D011606:Psychosexual Development; D012448:Sadism