1. Ann. rheum;BETT, I.M.;Dis; 63 (Metabolism of tryptophan in rheumatoid arthritis,1962
2. (An automated method for the measurement of folate activity);DAVIS, R.E.; NICOL, D.J.; KELLY, A.;Path,1970
3. (An automated method for microbiological assay of serum pyridoxal);SMITH, B.K.; CURNOW, D.H.;Ibid,1973
4. (Tryptophan level tests and pyridoxal-5-phosphate levels in epileptic children);HAGBERG, B.; HAMFELT, A.; HANSSON, D.;Acta paediat. scand,1966
5. Amer;HOLLISTER, L.E.; MOORE, F.F.; FORREST, F.; BENNETT, J.L.;J. clin. Nutr; Anti-pyridoxine effect of D-Penicillamine in schizophrenic men,1966