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| | Issue Date | Title | Author(s) |
| 1 | 1991 | A non-fatal case report of acute fatty liver of pregnancy. | Kueh, Y.K. ; Wang, T.L.; Yeo, T.C.; Guan, R. |
| 2 | 1992 | AIDS in Singapore: Some aspects of epidemiology and management | Chan, R.K.W.; Chew, S.K.; Monteiro, E.H.A.; Guan, R. |
| 3 | 1990 | Antibody to herpes simplex virus type 1 in peptic ulcer patients | Kang, J.Y. ; Lee, T.P. ; Guan, R. ; Tay, H.H. ; Yap, I. ; Math, M.V. |
| 4 | 1991 | Cell-mediated immunity in patients on hemodialysis: Relationship with hepatitis B carrier status | Lee, B.-W. ; Yap, H.-K. ; Tan, M.; Guan, R. ; Quak, S.-H. ; Choong, L.; Murugasu, B. ; Woo, K.-T.; Jordan, S.C. |
| 5 | 1995 | Chili - Protective factor against peptic ulcer? | Kang, J.Y. ; Yeoh, K.G. ; Chia, H.P. ; Lee, H.P.; Chia, Y.W. ; Guan, R. |
| 6 | 1995 | Chili protects against aspirin-induced gastroduodenal mucosal injury in humans | Yeoh, K.G. ; Kang, J.Y. ; Yap, I. ; Guan, R. ; Tan, C.C.; Wee, A. ; Teng, C.H. |
| 7 | 1991 | Chronic hepatitis B infection in Singapore. | Yap, I. ; Wee, A. ; Guan, R. |
| 8 | 1996 | Chronic upper abdominal pain due to duodenal ulcer and other structural and functional causes: Its localization and nocturnal occurrence | Kang, J.Y. ; Ho, K.Y. ; Yeoh, K.G. ; Guan, R. |
| 9 | 1992 | Chronic upper abdominal pain: Site and radiation in various structural and functional disorders and the effect of various foods | Kang, J.Y. ; Tay, H.H.; Guan, R. |
| 10 | 1990 | Comparison of culture and histology for the identification of Helicobacter pylori in endoscopic biopsies. | Yap, I. ; Kung, J.S.; Wee, A. ; Tay, H.H. ; Guan, R. ; Ho, B. ; Kang, J.Y. |
| 11 | 1991 | Cytological diagnosis from fine needle aspiration biopsy of the liver. | Wee, A. ; Nilsson, B. ; Chan-Wilde, C.; Yap, I. ; Guan, R. |
| 12 | 1995 | Early detection of hepatocellular carcinoma | Kang, J.Y. ; Guan, R. |
| 13 | 1990 | Effect of colloidal bismuth subcitrate on symptoms and gastric histology in non-ulcer dyspepsia. A double blind placebo controlled study | Kang, J.Y. ; Tay, H.H. ; Wee, A. ; Guan, R. ; Math, M.V. ; Yap, I. |
| 14 | 1990 | Endoscopic retrograde cholangiopancreatography and endoscopic sphincterotomy--a Singapore experience. | Yap, I. ; Guan, R. ; Kang, J.Y. |
| 15 | 1990 | Experience with endoscopic biliary drainage in Singapore. | Guan, R. ; Kang, J.Y. |
| 16 | Nov-2004 | Four years of lamivudine treatment in Chinese patients with chronic hepatitis B | Chang, T.-T.; Lai, C.-L.; Chien, R.-N.; Guan, R. ; Lim, S.-G. ; Lee, C.-M.; Ng, K.-Y. ; Nicholls, G.J.; Dent, J.C.; Leung, N.W.Y. |
| 17 | 1990 | Helicobacter pylori and gastritis in patients with peptic ulcer and non-ulcer dyspepsia: Ethnic differences in Singapore | Kang, J.Y. ; Wee, A. ; Math, M.V. ; Guan, R. ; Tay, H.H. ; Yap, I. ; Sutherland, I.H. |
| 18 | 1993 | Hepatitis a sero-epidemiology in Singapore: A changing pattern | Yap, I. ; Guan, R. |
| 19 | 1990 | Hepatitis B vaccination - The present status | Yap, I. ; Guan, R. |
| 140 | 1990 | Hepatitis B vaccination in chronic renal failure patients undergoing haemodialysis: The immunogenicity of an increased dose of a recombinant DNA hepatitis B vaccine | Guan, R. ; Tay, H.H. ; Choong, H.L.; Yap, I. ; Woo, K.T. |
