title: Semen analysis: setting standards for the measurement of sperm numbers.
authors.affiliation: Assisted Conception Unit, Birmingham Women's Hospital, Metchley Park Road, Birmingham B15 2TG, United Kingdom.
authors.forename: Lars
authors.initials: L
authors.lastname: Björndahl
authors.forename: Christopher L R
authors.initials: CL
authors.lastname: Barratt
mesh_terms: D033441:Andrology / Q000592:standards*; D006801:Humans; D008297:Male; D011785:Quality Assurance, Health Care; D012015:Reference Standards; D012661:Semen / Q000166:cytology*; D013076:Sperm Count / Q000379:methods*