Keywords: ترانساسازال مسهواسکوپی; CUSUM; Esophageal Cancer Screening; Prevention; Cost Reduction; BE; Barrett's esophagus; EGD; esophagogastroduodenoscopy; GERD; gastroesophageal reflux disease; PE; physician extender; TNE; transnasal esophagoscopy; VA; Veterans Affairs;