1. Barrett, J., Davidson, I. E., Smyth, W. F.: J. Pharm. and Pharmacol. (in press).
2. Clifford, J. M.: The analysis of several non-barbiturate hypnotics and their metabolites in body fluids, M. Sc. Dissertation, Chelsea College 1972.
3. Clifford, J. M., Smyth, W. F.: To be published.
4. Goldsmith, J., Grant, J., Jenkins, A., Smyth, W. F.: To be published.
5. National Formulary 1970.