The third R: refinement.
D032761:Animal Experimentation; D000826:Animal Testing Alternatives; D000827:Animal Welfare; D000818:Animals; D005069:Evaluation Studies as Topic; D006262:Health; D006801:Humans; D010146:Pain; D012015:Reference Standards; D012107:Research Design; D013315:Stress, Psychological
Biomedical and Behavioral Research