TY - GEN AU - Zacur,H A AU - Burkman,R T AU - Kimball,A W AU - Kwiterovich,P AU - Bell,W R TI - Existence of multiple peaks in plasma ethinyl estradiol and norethindrone after oral administration of a contraceptive pill SN - 0021-972X PY - 1992///1209 KW - Adult KW - Contraceptives, Oral KW - pharmacokinetics KW - Ethinyl Estradiol KW - blood KW - Female KW - Humans KW - Norethindrone KW - Radioimmunoassay KW - Time Factors N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1210/jcem.75.5.1430087 ER -