Gutierrez, A <br/><br/>
Australia antigenaemia in Costa Rica.  [electronic resource] 

 -  Lancet (London, England)  May 1972 
 - 1177 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0140-6736 
<br/><br/><label>Standard No.: </label>10.1016/s0140-6736(72)91398-0  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Costa Rica<br/>Hepatitis--epidemiology<br/>Hepatitis B Antigens<br/>Hepatitis B virus<br/>Humans