Evaluation of vitamin A status in children.
D002648:Child; D002664:Child Nutritional Physiological Phenomena; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008099:Liver / Q000378:metabolism; D009749:Nutrition Surveys; D014801:Vitamin A / Q000032:analysis* / Q000378:metabolism
D014801:Vitamin A