ANAESTHESIA FOR NOSE, THROAT, AND ABDOMINAL SURGERY BY THE NITROUS OXIDE-OXYGEN-C.E. COMBINATIONBr Med J 1921; 2 doi: http://dx.doi.org/10.1136/bmj.2.3172.591 (Published 15 October 1921) Cite this as: Br Med J 1921;2:591
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