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Autor:
Qiuping Yang, Kenneth W. Miller, Yuhai Sun, Su-Fang Zheng, Abby G. Ershow, Chung S. Yang, William J. Blot, Jun-Yao Li, Guangyi Li
Publikováno v:
JNCI: Journal of the National Cancer Institute.
Biochemical analyses were conducted to evaluate the nutritional status of a high esophageal cancer risk population in Linxian, People's Republic of China. A study was conducted in September 1980 in which plasma levels of vitamins A, B2, and C were an