1. Fever in gastric and duodenal ulcer;BANG, S.;Arch. intern. Med,1938
2. Observations on the incidence and cause of fever in patients with bleeding peptic ulcers;DILL, L.V.; ISENHOUR, C.E.;Amer. J. dig. Dis,1939
3. Eulenburg's Real Encyclopedie der Gesammten;EWALD, M.;Heilkunde,1897
4. Gastric and Duodenal Ulcer;HURST, A.F.; STEWART, M.J.,1929
5. Uber Fieber bei Ulcus ventriculi et duodeni;KRONER, J.;Dtsch. med. Wchschr,1926