Extranodal marginal zone B-cell lymphoma of the gastrointestinal tract sparing only the esophagus: A case report - LAI, Hsin-Wu; LIN, Chun-Che; TSAI, Ming-Chang; CHEN, Tan-Hsia; TSENG, Szu-Wen; CHANG, Han; CHEN, Tzy-Yen (Turkish Journal of Gastroenterology, 2012)