Vitamin A supplementation and childhood morbidity.
Semba
R
R
Hussey
G
G
D002675:Child, Preschool; D003967:Diarrhea / Q000188:drug therapy*; D006801:Humans; D008171:Lung Diseases / Q000188:drug therapy*; D014801:Vitamin A / Q000627:therapeutic use*
D014801:Vitamin A