1. The rate of progress of food residues through the bowel;Alvarez, W.C.; Freedlander, B.L.;Journal of the American Medical Association,1924
2. The intestinal rate and the form of the faeces;Burnett, F.L.;American Journal of Roentgenology,1923
3. Wireless telemetering from the digestive tract;Connell, A.M.; Rowlands, E.N.;Gut,1960
4. Measurement of the mean transit time of dietary residue through the human gut;Cummings, J.H.; Jenkins, D.J.A.; Wiggins, H.S.;Gut,1976
5. Usefulness of chromic oxide as an internal standard for balance studies in formula-fed patients and for assessment of colonic function;Davignon, J.; Simmonds, W.J.; Ahrens, E.H.;Journal of Clinical Investigation,1968