1. Albanus, L. (1970): FOA Rept. 4:1–17.
2. Alven, G., Ericson, A. and Westerholm, B. (1977): Lakartidningen 74:315–317.
3. Aquilonius, S.-M. and Hedstrand, U. (1977): Acta Anesth. Scand. (in press).
4. Bartolini, A., Bartolini, R. and Domino, E.F. (1973): Neuropharmacology 12:15–25.
5. Bernhards, W. (1973): Anesth. Anal. 52:938–941.