1. Intrinsic factor van Castle en resorptie van vitamin B12;Abels, J.,1959
2. A method for the assay of human gastric intrinsic factor and for the detection and titration of antibodies against intrinsic factor;Ardeman, S.; Chanarin, I.;Lancet,1963
3. Assay of gastric intrinsic factor in the diagnosis of Addisonian pernicious anaemia;a;Brit. J. Haemat
4. Steroids and Addisonian pernicious anaemia. New Enge;b;J. Med
5. Observations on the relationship of intrinsic factor in the absorption of labelled vitamin B12 from the intestine;Callender, S.T.; Evans, J.R.;Clin. Sci,1955