1. Global incidence and mortality;Ferlay,2002
2. Consolidated report of the population based cancer registries 2001–2004;Nandakumar,2006
3. Trends in esophageal cancer incidence by histology, United States, 1998–2003;Trivers;IJC,2008
4. Epidemiology of esophageal cancer: an overview article;Kollarova;Biomed Pap Med Fac Univ Palcky Olomouc Czech Repub,2007
5. Smoking and chewing of tobacco in relation to cancer of the upper alimentary tract;Sanghvi;Br Med J,1955