Ovarian hormone concentrations and genital swelling patterns in female chimpanzees with Norplant implants

Abstract 10.1002/(SICI)1098-2361(1997)16:33.3.CO;2-A The purpose of this study was to assess the effects of Norplant implants on ovarian hormone secretion and genital swelling patterns in female chimpanzees. Urine samples were collected during one natural cycle before (n = 5 females) and one cycle ∼6 months following (n = 7 females) insertion of Norplant implants. Genital swelling […]