Warrell, D A <br/><br/>
The success of vaccination in tropical countries.  [electronic resource] 

 -  Proceedings of the Royal College of Physicians of Edinburgh  Jan 1997 
 - 22-9 p.  digital 
<br/><br/> Publication Type: Historical Article; Journal Article 
<br/><br/><label>ISSN: </label>0953-0932 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communicable Disease Control--history<br/>History, 20th Century<br/>Humans<br/>Immunization--history<br/>Public Health--history<br/>Tropical Climate<br/>Vaccination--history