Postlethwaite, D L <br/><br/>
Pregnancy rate of a progestogen oral contraceptive.  [electronic resource] 

 -  The Practitioner  Feb 1979 
 - 272-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0032-6518 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Ethynodiol Diacetate<br/>Female<br/>Humans<br/>Middle Aged<br/>Pregnancy