1. Routine chemical tests of the stools for occult blood: an evaluation;Irons, G.V.; Kirsner, J.B.;Am J Med Sci,1965
2. Correlation between qualitative and quantitative faecal occult blood tests;Robertson, J.D.; Maughan, R.J.; Davidson, R.J.L.;Clin Chim Acta,1987
3. HemoQuant, a new quantitative assay for fecal hemoglobin. Comparison with Hemoccult;Ahlquist, D.A.; McGill, D.B.; Schwartz, S.; Taylor, W.F.; Ellefson, M.; Owen, R.A.,1984
4. Measurement of gastrointestinal bleeding using radioactive chromium;Bannerman, R.M.;Br Med J,1957
5. Measurement of blood loss by means of a whole-body counter;Holt, J.M.; Mayet, F.G.H.; Warner, G.T.; Callender, S.T.;Br Med J,1967