title: The rat (Rattus norvegicus Berkenhout) in practical laboratory work--experimental investigations.
mesh_terms: D000818:Animals; D000830:Animals, Laboratory; D001522:Behavior, Animal; D001835:Body Weight; D001947:Breeding; D005260:Female; D008297:Male; D009929:Organ Size; D011247:Pregnancy; D051381:Rats / Q000254:growth & development