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Filters: National Anti-Vivisection Society U.S. Humane Society of the United StatesLast Chance for Animals Organization von Haugwitz, EvaPrimarily Primates IncDuke UniversitySea Shepherd Conservation SocietyIn Defense of Animals Group Society for Animal Protective LegislationAnimal Legal Defense FundN.C. Network for Animals1950-19591970-1979