Leguia, A L <br/><br/>
A Latin American field trial with a once-a-month oral contraceptive.  [electronic resource] 

 -  The Journal of reproductive medicine  Apr 1973 
 - 202-3 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0024-7758 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Contraceptives, Oral--therapeutic use<br/>Estrogens--therapeutic use<br/>Female<br/>Humans<br/>Menstruation--drug effects<br/>Quinestrol--therapeutic use<br/>South America