7Zhang W, Bailey-Wilson JE, Li W, et al. Segregation analysis of esophageal cancer in a moderately high-incidence area of northern China. Am J Hum Genet,2000,67:110-119.
8Carter CL, Hu N, Wu M, et al. Segregation analysis of esophageal cancer in 221 high-risk Chinese families. J Natl Cancer Inst, 1992,84 : 771-776.
9Mark SD, Qiao YL, Dawsey SM, et al. Prospective study of serum selenium levels and incident esophageal and gastric caneeas. J Natl Cancer Inst, 2000,92:1753-1763.
10Song CY, Xing DX, Tan W, et al.Methylenetetrahydrofolate reductase polymorphisms increase risk of esophageal squamous cell carcinoma in a Chinese population. Cancer Res, 2001, 61 : 3272-3275.
