Medical and Health Annual 

 - Chicago  Encyclopaedia Britannica  1984 
 - 446 p.  27 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENCICLOPEDIA - MEDICINA - SALUD - INVESTIGACIONES
<br/><br/><label>Dewey Class. No.: </label>520  / ENC