1. Watts, G. T., Wound Healing, 26 (Pergamon Press, 1961).
2. Prudden, J. F., Nishihari, G., and Baker, L., Surg. Gynec. and Obst., 105, 203 (1957).
3. Watts, G. T., Baddeley, R. M., Crawford, N., and Wellings, R., Brit. J. Clin. Pract., 16, 11, 733 (1962).
4. Axelrod, A. E., and Martin, C. J., Proc. Soc. Exp. Biol. and Med., 83, 461 (1953).
5. Neuman, R. E., and Logan, M. A., J. Biol. Chem., 184, 299 (1950).