Vitamin a supplements :  a guide to their use in the treatment and prevention of vitamin A deficiency and xerophthalmia / 
prepared by a WHO, UNICEF and IVACG 
 - 24 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Deficiencia de vitamina A--Prevención.<br/>Vitaminoterapia.<br/>Xeroftalmía--Prevención.
<br/><br/><label>Dewey Class. No.: </label>615.328  / W927v 1988