1. Gwathmey, J. T. General Anesthesia. Historical Highlights in Its Development. Hygeia14. 109–12 (Feb, 1936).
2. Adams, R. C. Intravenous Anaesthesia, p. 457. New York: Paul B Hoeber, Inc. (1944).
3. Weese, H., &Schrapff, W. Evipan, ein nerrantiges Einschlaffmittal. Deutsche med. Wchnschr.58: 1205–7 (July, 1932.
4. Lundy, J. A. Intravenous Anesthesia Preliminary Report on the Use of Two New Thiobarbiturates. Proc. Staff. Meet., Mayo. Clinic.10 536–43 (Aug. 21, 1935).
5. Brodie, B. B., Bernstein, E., &Mark, L. C. The Role of Body Fat in Limiting the Duration of Action of Thiopental. J. Pharmacol. & Exper. Therap.105: 421 (Aug, 1952).