Of Mice and Means

Abstract

THE use of control and experimental groups of animals for the study of in vivo effects of drugs and foreign chemicals is a standard practice. Considerable care is given to several accepted precautions such as the establishment of identical conditions for both groups and the choice of litter mates of the same sex. If a drug is to be given parenterally to the… (More)
DOI: 10.1038/229066a0