Preventive chemotherapy in human helminthiasis: coordinated use of anthelminthic control interventions: a manual for health professionals and programme managers (produced by WHO) 2006  
	
	
	        
		
        03 Jun 2019  
	
  
  	
			A 74 page book focussing on how and when a set of low cost or free drugs should be used in developing countries to control a set of diseases caused by worm infections.