@book{90647,
	author = {Keys, Thomas E. and Leake, Chauncey Depew,},
	title = {The history of surgical anesthesia,},
	publisher = {Schuman's,},
	year = {1945.},
	address = {New York,},
	note = {"Appendix: The Morton and Warren tracts on ether (Letheon) by John F. Fulton": p. 176-182.}
}