Leite, Iúri C <br/><br/>
Assessing regional differences in contraceptive discontinuation, failure and switching in Brazil.  [electronic resource] 

 -  Reproductive health  Jul 2007 
 - 6 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1742-4755 
<br/><br/><label>Standard No.: </label>10.1186/1742-4755-4-6  doi