Faundes, A <br/><br/>
Simplifying NFP: preliminary report of a pilot study of the 'collar' method in Brazil.  [electronic resource] 

 -  Advances in contraception : the official journal of the Society for the Advancement of Contraception   
 - 167-71 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0267-4874 
<br/><br/><label>Standard No.: </label>10.1023/a:1006547820310  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Brazil<br/>Family Planning Services--methods<br/>Female<br/>Fertility<br/>Focus Groups<br/>Humans<br/>Male<br/>Natural Family Planning Methods<br/>Ovulation Detection<br/>Patient Education as Topic<br/>Pilot Projects