1. Field, E. J., and Caspary, E. A., J. Clin. Pathol. (in the press).
2. Field, E. J., Caspary, E. A., Hall, R., and Clark, F., Lancet, i, 1144 (1970).
3. Caspary, E. A., and Field, E. J., Europ. Neurol. (in the press).
4. Field, E. J., and Caspary, E. A., Lancet, ii, 1337 (1970).
5. Caspary, E. A., Hughes, D., and Field, E. J., Clin. Exp. Immunol., 7, 395 (1970).