Biochemical evidence suggestive of suboptimal zinc and vitamin A status in schoolchildren in northeast ThailandEmorn Udomkesmalee, James C. Smith, J Yhoung-Aree et al.|American Journal of Clinical Nutrition|1990Cited by 35
Biochemical evidence suggestive of suboptimal zinc and vitamin A status in schoolchildren in northeast ThailandEmorn Udomkesmalee, James C. Smith, S Dhanamitta et al.|American Journal of Clinical Nutrition|1990Cited by 13