| | Issue Date | Title | Author(s) |
| 1 | 1989 | Acid induced duodenal ulcer pain: The influence of symptom status and the effect of an antispasmodic | Kang, J.Y. ; Yap, I. ; Guan, R.; Tay, H.H. ; Math, M.V. |
| 2 | 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. |
| 3 | 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. |
| 4 | 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. |
| 5 | 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. |
| 6 | 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. |
| 7 | 1991 | Hepatitis B vaccination: Half dose recombinant DNA hepatitis B vaccine (B-Hepavac II) is as immunogenic as the full recommended dose in healthy adults | Guan, R. ; Yap, I. ; Tay, H.H. |
| 8 | 1991 | Horizontal or vertical transmission of hepatitis B virus? A serological survey in family members of hepatitis B carriers in Singapore | Tan, C.C. ; Guan, R. ; Yap, I. ; Tay, H.H. ; Kang, J.Y. |
| 9 | 1989 | Immunogenicity of a low dose recombinant DNA hepatitis B vaccine in healthy adults in Singapore | Guan, R.; Tay, H.H. ; Yap, I.; Smith, R.; Than, L.H. |
| 10 | 1990 | Low-dose cimetidine in the acute treatment of duodenal ulcer. Comparison of a single nocturnal dose regimen with a twice daily regimen. | Kang, J.Y. ; Guan, R. ; Tay, H.H. ; Yap, I. ; Wee, A. ; Math, M.V. ; Labrooy, S.J. |
| 11 | Jun-1990 | Multiple endocrine neoplasia type 1--presenting with impotence. | Lye, W.C.; Lee, K.O. ; Tay, H.H. |
| 12 | 1985 | Ranitidine in the acute treatment of duodenal ulcer. A double-blind placebo-controlled trial | Yap, I. ; LaBrooy, S.J.; Tay, H.H. ; Guan, R. ; Kang, J.Y. |
| 13 | Dec-1991 | Seroprevalence of antibodies to the hepatitis C virus in Singapore. | Yap, I. ; Guan, R. ; Kang, J.Y. ; Tay, H.H. ; Lee, E. ; Choong, L.; Woo, K.T. |
| 14 | Sep-1990 | The immune response of low dose recombinant DNA hepatitis B vaccine in teenagers in Singapore | Guan, R. ; Tay, H.H. ; Yap, I. ; Smith, R.; Tan, L.H. |
| 15 | 1990 | The immune response of low dose recombinant DNA hepatitis B vaccine in teenagers in Singapore | Guan, R. ; Tay, H.H. ; Smith, R.; Tan, L.H.; Yap, I. |
| 16 | 1990 | The influence of dialect group on peptic ulcer frequency amongst the Chinese in Singapore | Kang, J.Y. ; Yap, I. ; Labrooy, S.J.; Guan, R. ; Tay, H.H. ; Lim, K.P.; Math, M.V. |
| 17 | 1990 | The site of recurrent duodenal ulcer | Kang, J.Y. ; Guan, R. ; Tay, H.H. ; Yap, I. ; Math, M.V. ; Labrooy, S.J. |