1. Gajdusek, D. C., Guiart, J., Kirk, R. L., Carrell, R. W., Irvine, D., Kynoch, P. A. M., and Lehmann, H., J. Med. Genet., 4, 1 (1967).
2. Booth, P. B., Vines, A. P., and Saave, J. J., Archeol. Phys. Anthropol. Oceania, 4, 115 (1969).
3. Abramson, R. K., Rucknagel, D. L., Schreffler, D. C., and Saave, J. J., Science, 169, 194 (1970).
4. Clegg, J. B., Naughton, M. A., and Weatherall, D. J., Nature, 207, 945 (1965).
5. Huehns, E. R., in Chromatographic and Electrophoretic Techniques, second ed. (edit. by Smith, I.), 2, 291 (Heinemann, London, 1968).