title: Rationale for new model development.
mesh_terms: D000827:Animal Welfare; D000818:Animals; D001675:Bioethics; D004195:Disease Models, Animal; D032984:Ethics, Research; D019637:Orthopedic Procedures / Q000379:methods*; D011817:Rabbits; D051381:Rats; D012106:Research / Q000191:economics*