Barrett's esophagus (BE) and carcinoma in the esophageal stump (ES) after esophagectomy with gastric pull-up in achalasia patients: a study based on 10 years follow-up - Rocha, Julio Rafael Mariano da; Ribeiro Junior, Ulysses; Sallum, Rubens A. A.; Szachonowicz, Sérgio; Cecconello, Ivan (Annals of surgical oncology, 2008)