Zacur, H A <br/><br/>
Existence of multiple peaks in plasma ethinyl estradiol and norethindrone after oral administration of a contraceptive pill.  [electronic resource] 

 -  The Journal of clinical endocrinology and metabolism  Nov 1992 
 - 1268-72 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0021-972X 
<br/><br/><label>Standard No.: </label>10.1210/jcem.75.5.1430087  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Contraceptives, Oral--pharmacokinetics<br/>Ethinyl Estradiol--blood<br/>Female<br/>Humans<br/>Norethindrone--blood<br/>Radioimmunoassay<br/>Time Factors