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ÃÛÑ¿´«Ã½ Four
Drills, Dentures and Dentistry: An Oral History
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Laughing the pain away
Professor Joanna Bourke explains how Horace Wells discovered the efficacy of laughing gas.
Release date:
30 March 2015
Duration:
2 minutes
This clip is from
Drills, Dentures and Dentistry: An Oral History