4Nishi K,Tokunaga A, Shimizu Y, etal. Immunohistochemical Study of intracellular estradiol in hnman gastric cancer[J]. Cancer, 1987,59:1328.
5Breslin N P, Thomson ABR, Bailey R J, etal. Gastric cancer and other en-doscop ic disgnosis in patients with benign dyspep sia[J]. Gut,2000,46 (1):93.