1. Predictors of duodenal ulcer healing and relapse;Sonnenberg, A.; Muller-Lissner, S.A.; Vogel, E.;Gastroenterology,1981
2. Smoking and duodenal ulcer;Wormsley, K.G.;Gastroenterology,1978
3. Epidemiology of peptic ulcer disease;Kurata, J.H.; Haile, B.M.;Clin Gastroenterol,1984
4. Placebo controlled studies with ranitidine in duodenal ulcer;Dobrilla, G.; Barbara, L.; Bianchi Porro, G.; Mazzacca, G.; Verme, G.;Scand J Gastroenterol,1981
5. Ranitidine in duodenal ulcer: healing rate and effect of smoking;Korman, M.G.; Hansky, J.; Merrett, A.C.; Schmidt, G.T.