A. Nayyar

Oesophageal acid-peptic strictures in the histamine H2 receptor antagonist and proton pump inhibitor era.

K. D. Bardhan, C. Royston, A. Nayyar, 2003, Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver.

The outcome of bleeding duodenal ulcer in the era of H2 receptor antagonist therapy.

K. D. Bardhan, C. Royston, A. Nayyar, 1998, QJM : monthly journal of the Association of Physicians.

Systematic review: hepatosplenic T‐cell lymphoma on biologic therapy for inflammatory bowel disease, including data from the Food and Drug Administration Adverse Event Reporting System

C. Siegel, J. Koliani-Pace, E. Shah, 2020, Alimentary pharmacology & therapeutics.

History in our lifetime: the changing nature of refractory duodenal ulcer in the era of histamine H2 receptor antagonists.

K. D. Bardhan, C. Royston, A. Nayyar, 2003, Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver.

Reflux rising! An essay on witnessing a disease in evolution.

K. D. Bardhan, C. Royston, A. Nayyar, 2006, Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver.

Pseudomembranous esophagitis.

D. Slater, K. D. Bardhan, C. Royston, 2001, Gastrointestinal endoscopy.

Reflux rising! A disease in evolution?

K. D. Bardhan, C. Royston, A. Nayyar, 2000 .