title: Re: age thresholds for changes in semen parameters in men.
authors.forename: Craig
authors.initials: C
authors.lastname: Niederberger
mesh_terms: D000375:Aging / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D010331:Paternal Age; D011247:Pregnancy; D055101:Semen Analysis; D013094:Spermatozoa / Q000473:pathology*