Aznar, R <br/><br/>
[Study of d-norgestrel as a contraceptive].  [electronic resource] 

 -  Ginecologia y obstetricia de Mexico  Feb 1974 
 - 191-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0300-9041 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Evaluation Studies as Topic<br/>Female<br/>Humans<br/>Norgestrel--administration & dosage<br/>Ovulation--drug effects<br/>Pregnancy<br/>Time Factors