1. Development of a Crohn's disease activity index;Best, W.; Becktel, J.M.; Singleton, J.M.; Kern, J.;Gastroenterology,1978
2. Detection of abnormal gastrointestinal protein loss by means of 59Fe-inferon;Andersen, S.B.; Jarnum, S.;Lancet,1965
3. Exudative enteropathy. Abnormal permeability of the gastrointestinal tract demonstrable with PVP;Gordon, R.S.;Lancet,1959
4. Gastrointestinal protein loss demonstrated by 51Cr-labelled albumin;Waldmann, T.A.;Lancet
5. Measurement of gastrointestinal protein loss using ceruloplasmin labelled with "7copper;Waldmann, T.A.; Morell, G.A.; Wochner, R.D.; Sternlieb, Strober W.; I.;J Clin Invest,1976