1. Megaoesophagus and its neuropathology: a clinical and anatomo-pathological research;Etzel, E.;Guy's Hosp. Rep,1937
2. Effects of destruction of intramural ganglion cells on colon motility: possible genesis of congenital megacolon;Hukuhara, T.; Kotani, S.; Sato, G.;Jap. J. Physiol,1961
3. The sphincters of the alimentary canal and their clinical significance;Hurst, A.F.;Brit med. J,1925
4. Zur Frage der Entstehung sog. "idiopathischer Dilatationen";Koberle, F.;muskularer Hohlorgane. Virchows Arch. path. Anat,1956
5. Experimental production of megacolon resembling Hirschsprung's disease;McElhannon, F.M.;Surg. Forum,1960