title: [Sperm liquefaction in men from sterile families].
mesh_terms: D000328:Adult; D000367:Age Factors; D002031:Bulgaria; D004542:Ejaculation; D006801:Humans; D007248:Infertility, Male / Q000503:physiopathology*; D008297:Male; D009790:Occupations; D012661:Semen / Q000502:physiology*; D013094:Spermatozoa / Q000473:pathology; D013997:Time Factors
vernacular_title: Vtechniavane na spermata pri muzhe ot bezplodni semeĭstva