The society's guidelines are that 60 % of animals in a study should survive at least 3 months. (sciencemag.org)
Those methods have fueled expectations that in vitro testing and computer models could also reduce the need for animals in studying diseases. (protomag.com)
«There is no excuse or justification for using animals in studies that are poorly designed and can never be reproduced.» (sciencemag.org)