title: The number of motile spermatozoa as an index of fertility in man; a study of 406 semen specimens specimens.
authors.forename: E J
authors.initials: EJ
authors.lastname: FARRIS
mesh_terms: D005298:Fertility; D006801:Humans; D008297:Male; D012661:Semen; D013094:Spermatozoa
keywords: FECUNDITY; SPERMATOZOA