Quality control and essential drugs.  [electronic resource] 

 -  Lancet (London, England)  Aug 1997 
 - 601 p.  digital 
<br/><br/> Publication Type: Editorial 
<br/><br/><label>ISSN: </label>0140-6736 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Antitubercular Agents--standards<br/>Developing Countries<br/>Drug Contamination<br/>Humans<br/>Quality Control<br/>World Health Organization