WHO,   . <br/><br/>
Tropical Disease Research Programmess 19975-94 /   Textual Documents 

 -  WHO ,   1995. 
 - 226 ;    
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Preventive and Social Medicine  Medical Science 
<br/><br/><label>Dewey Class. No.: </label>614  / WHO