Spellacy, W N <br/><br/>
A perspective on progestogens in oral contraceptives.  [electronic resource] 

 -  American journal of obstetrics and gynecology  Mar 1982 
 - 717 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0002-9378 
<br/><br/><label>Standard No.: </label>10.1016/s0002-9378(16)32475-9  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Contraceptives, Oral--adverse effects<br/>Contraceptives, Oral, Hormonal--adverse effects<br/>Contraceptives, Oral, Synthetic--adverse effects<br/>Female<br/>Humans