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The APSF Committee on Technology. APSF Newsletter. 2022;37(1):7–8.
Allegranzi B, Bischoff P, de Jonge S, et al; WHO Guidelines Development Group. Geneva, Switzerland: World Health Organization; 2016. ISBN: 9789241549882.
NHS England Patient Safety Domain, National Safety Standards for Invasive Procedures Group. London, UK: National Health Service; 2015.