State law halts pet research projects.
D032761:Animal Experimentation; D000827:Animal Welfare; D000818:Animals; D004467:Economics; D033161:Government Regulation; D007878:Legislation as Topic; D008404:Massachusetts; D011057:Politics; D012926:Social Control, Formal; D013219:State Government
Biomedical and Behavioral Research; Legal Approach; Popular Approach/Source