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| 1955 || Organization || The World Federation of Societies of Anaesthesiologists (WFSA) is established in {{w|Scheveningen}}, {{w|Netherlands}}, at the first World Congress of Anaesthesiologists (WCA).<ref name="History of Anesthesia"/> || {{w|Netherlands}}
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| 1958 || Instrumental || The Bodok seal is introduced into the anesthesia machine.<ref name="The basic anaesthesia machine"/> ||
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| 1960 || Drug || {{w|Methoxyflurane}} is introduced into clinical practice.<ref name="Medical Toxicology of Drug Abuse: Synthesized Chemicals and Psychoactive Plants"/> ||
