A good guide to what is esophageal cancer and what it is all about.
http://go.beststoremoz.com/view?filename=100-Questions-%26-Answer-About-Esophageal-Cancer.zip&q=100+Questions+%26+Answer+About+Esophageal+Cancer&group=titst3&source=pdf-grbooks2
100 Questions & Answer About Esophageal Cancer