1. la Suisse Romande;ASKANAZY, M.,1920
2. Virch;ASKANAZY, M.;Arch,1924
3. 'Gastro-enterology,' Vol;BOCKUS, H.L.,1946
4. Gastric and Duodenal Ulcer,;HURST, A.F.; STEWART, M.J.;Brit. J. Surg,1929
5. SWYNNERTON, B. F., and TANNER, N. C. (1953), Brit. med. J., ii, 841.