[The significance of the study of semen for childless marriages].
D001826:Body Fluids; D006801:Humans; D007246:Infertility; D007248:Infertility, Male / Q000209:etiology*; D008297:Male; D008393:Marriage; D012661:Semen / Q000737:chemistry*
SEMEN/chemistry; STERILITY, MALE/etiology