Hashem B. El-Serag, M.D., M.P.H. SPECIALTIES Gastroenterology PROFESSIONAL INTERESTS Barrett's esophagus Dyspepsia and gastroesophageal reflux disease Viral hepatitis Chronic liver disease Hepatocellular carcinoma View Details Request Appointment TAGS: ABDOMINAL PAIN ANAL FISTULA ANORECTAL ABSCESS BARRETT ESOPHAGUS CAPSULE ENDOSCOPY CELIAC DISEASE CHOLELITHIASIS CHRONIC DIARRHEA +34 MORE