1. Personal communication from Mr;d'Abreu, A.L.,1936
2. Personal communication from Dr. Georgiana Elizabeth Hospital, Birmingham, for radiotherapy. He was given tracer dosage only of 250 micro-curies of 1131 on;Goldie, W.,1950
3. Hughes, B. (1920). Brit. med. J., 1, 362.
4. Personal communication from Mr;Joll, C.A.,1936
5. Moncrieff, A. and Poynton, F. J. (1929). Proc. rov. Soc. Med., 23, 109.