title: Biology of spermatogenesis.
authors.affiliation: New York, NY, United States. Electronic address: y-cheng@popcbr.rockefeller.edu.
authors.forename: C Yan
authors.initials: CY
authors.lastname: Cheng
mesh_terms: D000818:Animals; D053713:Azoospermia / Q000473:pathology; D006801:Humans; D008297:Male; D051381:Rats; D013091:Spermatogenesis / Q000502:physiology*; D013094:Spermatozoa / Q000166:cytology; D013737:Testis / Q000502:physiology