Reproduction and longevity in the hamster and rat.
D000818:Animals; D002369:Castration; D006224:Cricetinae / Q000502:physiology*; D005260:Female; D008136:Longevity; D008297:Male; D011247:Pregnancy; D011555:Pseudopregnancy; D051381:Rats / Q000502:physiology*; D012098:Reproduction; D014659:Vasectomy