title: [The male factor in sterility].
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D007248:Infertility, Male / Q000209:etiology*; D008297:Male; D012661:Semen / Q000032:analysis; D013081:Sperm Motility
vernacular_title: Factor masculino de esterilidad.