4Steinbach G, Hong WK. Early detection of esophageal cancer by chromoendoscopy[J]. Cancer, 1995,76 (6) : 919-921.
5Dawsey SM,Lewin KJ,Wang GQ,et al. Squamous esophageal histology and subsequent risk of squamous cell carcinoma of the esophagus.A prospective follow-up study from Linxian, China[J]. Cancer, 1994,74(6) : 1686-1692.
6Dawsey SM, Fleischer DE, Wang GQ, et al. Mucosal iodine stain- ing improves endoscopic visualization of squamous dysplasia and squamous cell cacinoma of the esophagus in Linxian, China[J]. Cancer, 1998,83 (2) : 220-231.
7Yokoyama A, Ohmori T, Makuuchi H, et al. Successful screening for early esophageal cancer in alcoholics using endoscopy and mucosa iodine staining[J]. Cancer, 1995,76 (6) : 928-934.
8Massard G, Dabbagh A, Vetter D,et al. Preoperative evaluation of cancers of the esophagus. Contribution of in vivo staining[J]. Presse Med, 1995,24 (21 ) : 975 -978.
