My father was diagnosed with stage 3-4 Esophageal Cancer August 2007. He was treated by chemotherapy. The tumour [tumor] became small in the first chemotherapy, but it didn’t change in the second chemotherapy. Now the doctors suggest my father to do a surgery, but there is a problem that my father is weak, only 80 lb. My question is what is the best solution to treat esophageal cancer like my father’s?