title: THE RELATIONSHIP BETWEEN THE OCCURRENCE OF MORTALITY AND THE DEVELOPMENT OF ACTIVE IMMUNITY IN THE YOUNG RAT.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D000917:Antibody Formation; D007109:Immunity; D007110:Immunity, Active; D009026:Mortality; D051381:Rats; D012106:Research
keywords: ANIMALS, NEWBORN; ANTIBODY FORMATION; EXPERIMENTAL LAB STUDY; IMMUNITY; MORTALITY; RATS