Chen Xue-Cun,M.D., Yen Tai-An, Tong Xiu-Zhen1, He Yu-FangI, Yu Xiao-Yue2, Liu Shu-Rong2, and Yan Huai-ChengIn order to determine the usefulness of opaque-2 maize in the prevention of pellagra, people from the third and f i f t h brigades of a commune in a maize-eating ...