Training chimpanzees to voluntarily present for intramuscular injections using positive reinforcement training techniques (2005)

Schapiro, S. J., Perlman, J. E., Thiele, E. et al.

Abstract

82 animals were reliably trained to present for injection in a mean of 87 minutes. During 2003, 68% of 361 injections were given to animals voluntarily presenting a thigh.