Importance of the early diagnosis of vitamin A deficiency at the epidemiological level.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008099:Liver / Q000378:metabolism; D009749:Nutrition Surveys; D009747:Nutritional Physiological Phenomena; D011634:Public Health; D014801:Vitamin A / Q000097:blood / Q000378:metabolism; D014802:Vitamin A Deficiency / Q000175:diagnosis* / Q000453:epidemiology
D014801:Vitamin A