Helmrich, S P <br/><br/>
Venous thromboembolism in relation to oral contraceptive use.  [electronic resource] 

 -  Obstetrics and gynecology  Jan 1987 
 - 91-5 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0029-7844 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Contraceptives, Oral, Hormonal--adverse effects<br/>Dose-Response Relationship, Drug<br/>Estradiol Congeners--adverse effects<br/>Female<br/>Humans<br/>Middle Aged<br/>Pulmonary Embolism--chemically induced<br/>Risk<br/>Thromboembolism--chemically induced<br/>Time Factors