title: A comparative study of daily sperm production and testicular composition in humans and rats.
mesh_terms: D000328:Adult; D000818:Animals; D002452:Cell Count; D002467:Cell Nucleus / Q000032:analysis; D006801:Humans; D008297:Male; D051381:Rats; D012671:Seminiferous Tubules / Q000032:analysis; D013091:Spermatogenesis; D013737:Testis / Q000166:cytology / Q000502:physiology*; D013997:Time Factors