1. Normal bacterial populations of the intestine and their relation to intestinal function;Donaldson, Jr, R.M.;New Engl. J. Med,1964
2. Studies of intestinal microflora;Gorbach, S.L.; Plaut, A.G.; Nahas, L.; Weinstein, L.; Spanknebel, G.; Levitan, R.,1967
3. Microorganisms of the small intestine and their relations to oral and fecal flora;Kalser, M.H.; Cohen, R.; Arteaga, I.; Yawn, E.; Mayoral, L.; Hoffert, W.R.; Frazier, D.;Gastroenterology; Normal viral and bacterial flora of the human small and large intestine,1966
4. Experiences with a hydraulic multiple biopsy instrument for intestinal biopsies in children;Meeuwisse, G.W.;Acta paediat. scand,1969
5. Culture studies of the gastrointestinal tract with a newly devised capsule. Results of tests in vitro and in vivo;Shiner, M.; Waters, T.E.; Gray, J.D.A.;Gastroenterology,1963