[A contribution to the knowledge of aspermia].
D004542:Ejaculation; D006801:Humans; D007248:Infertility, Male / Q000209:etiology*; D008297:Male; D011602:Psychophysiologic Disorders; D012661:Semen; D013094:Spermatozoa
Beitrag zur Kenntnis des Aspermatismus.