Use of the progestin challenge test in nonhuman primates (Macaca fascicularis) Robert M. Blair, Ph.D., J.Mark Cline, D.V.M., Ph.D., Mary S. Anthony, Ph.D., Thomas B. Clarkson, D.V.M. Fertility and Sterility Volume 77, Issue 2, Pages 387-391 (February 2002) DOI: 10.1016/S0015-0282(01)02967-3
FIGURE 1 Observed incidence of withdrawal bleeding during the seven days following the cessation of MPA administration. Solid columns (■) represent animals receiving vehicle + 0.28 mg/kg MPA; open columns (□) represent animals receiving vehicle + 0.56 mg/kg MPA; shaded columns (▩) represent animals receiving E2 + 0.28 mg/kg MPA; stippled columns (▩) represent animals receiving E2 + 0.56 mg/kg MPA. Blair. Progestin challenge in nonhuman primates. Fertil Steril 2002. Fertility and Sterility 2002 77, 387-391DOI: (10.1016/S0015-0282(01)02967-3)