1. Pneumatosis intestinalis: a review;Heng;Am J Gastroenterol,1995
2. The pathogenesis of human cytomegalovirus;Griffiths;J Pathol,2015
3. Cytomegalovirus esophagitis in an immunocompetent patient: case report;Lim;Turk J Gastroenterol,2014
4. Incidental finding of esophageal pneumatosis;Chelimilla;World J Gastrointest Endosc,2013
5. Endoscopic manifestations and clinical characteristics of cytomegalovirus infection in the upper gastrointestinal tract;Iwamuro;Acta Med Okayama,2017