"Appropriate technology" for vitamin A field research.
Solomons
N W
NW
Russell
R M
RM
D002214:Capsules; D002247:Carbon Isotopes; D002648:Child; D003906:Developing Countries; D006801:Humans; D007214:Indonesia; D009751:Nutritional Requirements; D012106:Research / Q000592:standards*; D012959:Socioeconomic Factors; D014480:United Nations; D014801:Vitamin A; D019207:beta Carotene / Q000008:administration & dosage / Q000493:pharmacokinetics*
D002214:Capsules; D002247:Carbon Isotopes; D019207:beta Carotene; D014801:Vitamin A