Guyatt, Helen <br/><br/>
The worm turns.  [electronic resource] 

 -  Trends in parasitology  Aug 2002 
 - 343 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1471-5007 
<br/><br/><label>Standard No.: </label>10.1016/s1471-4922(02)02378-4  doi