Plasma response to oral beta-carotene in Guatemalan schoolchildren.
Canfield LM, Bulux J, Quan de Serrano J, Rivera C, Lima AF, Lopez CY, Perez R, Khan LK, Harrison GG, Solomons NW.
Canfield LM, et al. Among authors: khan lk.
Am J Clin Nutr. 1991 Sep;54(3):539-47. doi: 10.1093/ajcn/54.3.539.
Am J Clin Nutr. 1991.
PMID: 1877511