1. Refractory duodenal ulcer;Bardhan, K.D.;Gut,1984
2. A randomised cross-over trial of tripotassium dicitrato bismuthate vs high dose cimetidine for duodenal ulcers resistant to standard dose of cimetidine;Lam, S.K.; Lee, N.W.; Koo, J.; Fok, Hui W.M.; KH, Ng; M.;Gut,1984
3. Effects of single and repeated doses of omeprazole on gastric acid and pepsin secretion in man;Howden, C.H.; Forrest, J.A.H.; Reid, J.L.;Gut,1984
4. Intermittent treatment of duodenal ulcer with cimetidine;Bardhan, K.D.;Br Med J,1980
5. Nonresponders to cimetidine treatment;Bardhan, D.K.,1981