Trussell, J <br/><br/>
Analyzing contraceptive failure.  [electronic resource] 

 -  The Journal of reproductive medicine  May 1999 
 - 478-9; author reply 480-1 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0024-7758 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Contraceptive Devices<br/>Equipment Failure--statistics & numerical data<br/>Female<br/>Humans<br/>Mathematical Computing<br/>Patient Compliance<br/>Patient Education as Topic<br/>Pregnancy<br/>Pregnancy Rate<br/>Reproducibility of Results