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My husband, Gary, had been healthy and active before he began complaining of a backache at age 67. Then he started having trouble swallowing. Food just wouldn¡¯t go down.

A doctor in our hometown of Russellville, Arkansas, ordered an endoscopy to examine Gary¡¯s esophagus.

After reviewing the results, the doctor pulled me aside. "It¡¯s not good,¡± he said. ¡°Your husband has esophageal cancer.¡±

The tumor was at the...