K. Ryu

Significance of Non-erosive Minimal Esophageal Lesions in Gastro-esophageal Reflux Disorder

J. Ryu, S. Hong, K. Ko, 2004, The Korean journal of internal medicine.

Clinical Features of Acute Acalculous Cholecystitis

J. Ryu, Ki Ho Kim, K. Ryu, 2003, Journal of clinical gastroenterology.

Acute Acalculous Cholecystitis Associated with Cholecystoduodenal Fistula and Duodenal Bleeding. A Case Report

Sang Bae Lee, J. Ryu, J. Bae, 2003, The Korean journal of internal medicine.

Various causes of dyspepsia : to determine organic and functional cause of dyspepsia

S. Paik, P. Rhee, K. Choi, 1998 .