Yuzpe, A A <br/><br/>
A multicenter clinical investigation employing ethinyl estradiol combined with dl-norgestrel as postcoital contraceptive agent.  [electronic resource] 

 -  Fertility and sterility  Apr 1982 
 - 508-13 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0015-0282 
<br/><br/><label>Standard No.: </label>10.1016/s0015-0282(16)46157-1  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Clinical Trials as Topic<br/>Contraceptives, Oral, Combined<br/>Contraceptives, Postcoital<br/>Ethinyl Estradiol--administration & dosage<br/>Female<br/>Humans<br/>Menstruation<br/>Norgestrel--administration & dosage