title: Declining sperm count. Recent decline may be relatively late stage of long-term process.
authors.forename: M
authors.initials: M
authors.lastname: Joffe
mesh_terms: D000328:Adult; D005602:France; D006801:Humans; D008297:Male; D008875:Middle Aged; D012606:Scotland; D012661:Semen / Q000502:physiology; D013076:Sperm Count; D013997:Time Factors