Vitamin A supplements: a guide to their use in the treatment and prevention of vitamin A deficiency and xerophthalmia / 
prepared by a WHO/UNICEF/IVACG Task Force. 
 - 2nd ed. 
 - Geneva :  World Health Organization ; Albany, NY : WHO Publication Center,  1997 
 - 24 p. ; 25 cm. 
<br/><br/>Includes bibliographical references (p. 19-20). 
<br/><br/><label>ISBN: </label>9241542365 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vitamin A deficiency.<br/>Vitamin A.<br/>Xerophthalmia.
<br/><br/><label>LC Class. No.: </label>LINK RC 627.V54 WHO 1997