1. Electron microscopy in Crohn’s disease;Aluwihare;Gut,1971
2. Isolation and characterization of a viral agent from intestinal tissue of patients with Crohn’s disease and other intestinal disorders;Aronson;Prog. Med. Virol,1975
3. Evidence of virus infection as a cause of Crohn’s disease;Beeken;Z. Gastroenterol,1979
4. Infectious agents in inflammatory bowel disease;Beeken;Developments in Digestive Diseases,1979
5. Microbial flora of the upper small bowel in Crohn’ s disease;Beeken;Gastroenterology,1973