REFERENCES
- Croft, D. N. & Wood, P. H. N. Brit. med. J. 1967, 1, 137–141.
- Cuddigan, J. H. P., Sweetland, C. & Croft, D. N. Rheum, phys. Med. 1971, II, 36–39.
- Danhof, I. E., Kailey, J. D. & Guinn, E. C. Curr. ther. Res. 1972, 14, 583–589.
- Ekenved, G., Elofsson, R. & Sölvell, L. To be published.
- Frenkel, E. P., McCall, M. S., Douglas, C. C. & Eisenberg, S. J. clin. Pharmacol. 1968. 8, 347–351.
- International Committee for Standardization in Hematology. Blood 1971, 38, 378–386.
- Jones, N. C. H. Brit. med. J. 1958, I, 493–496.
- Leonards, J. R. & Levy, G. Clin. Pharmacol. Ther. 1969, 10, 571–575.
- Leonards, J. R. & Levy, G. Clin. Pharmacol. Ther. 1967. 8. 400–408.
- Mollison, P. L. & Veal, N. Brit. J. Haemat. 1955, 1, 62–74.
- Parry, D. J. & Wood, P. H. N. Gut 1967, 8. 301–307.
- Phillips, B. M., Kraus, P. J., Allen, J. L. & Buslee, R. M. Toxicol, appl. Pharmacol. 1971. 20, 515–521.
- Pierson, R. N., Holt, P. R., Vatson, R. M. & Keating, R. Amer. J. Med. 1961, 31, 259–265.
- Scott, J. T., Porter, I. H., Lewis, S. M. & Dixon, A. St. J. Quart. J. Med. 1961, 30, 167–188.
- Sköldborn, H., Arvidsson, B. & Andersson, M. In: Proceed, of the 6th Conf. of the Nordic Ass. of Clin. Phys. Acta radiol. (Stockh.) 1972. Suppl. 313.
- Wood, P. H. N., Harvey-Smith, E. A. & Dixon, A. St. J. Brit. med. J. 1962. I, 669–675.