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2. Report of the Lancet Commission appointed to investigate the subject of the administration of chloroform and other anaesthetics from a clinical standpoint;Commission on Anaesthetics;Lancet,1893
3. The evolution of anesthesia I and II;Waters;Proceedings of the Staff Meetings of the Mayo Clinic,1942
4. A study of the deaths associated with anesthesia and surgery based on a study of 599,348 anesthesias in 10 institutions 1948–1952 inclusive;Beecher;Ann Surg,1954
5. Mortality, morbidity and risk in anaesthesia;Duberman,1986