1. Continuum of depth of sedation: Definition of general anesthesia and levels of sedation/analgesia. (n.d.). Retrieved August 20, 2020, from: https://www.asahq.org/standards-and-guidelines/continuum-of-depth-of-sedation-definition-of-general-anesthesia-and-levels-of-sedationanalgesia.
2. What is an invasive procedure? A definition to inform study design, evidence synthesis and research tracking;Cousins;BMJ Open,2019
3. Distinguishing monitored anesthesia care (“MAC”) from moderate sedation/analgesia (conscious sedation). (n.d.). Retrieved August 20, 2020, from: https://www.asahq.org/standards-and-guidelines/distinguishing-monitored-anesthesia-care-mac-from-moderate-sedationanalgesia-conscious-sedation.
4. Evaluation of different airway tests to determine difficult intubation in apparently normal adult patients: Undergoing surgical procedures;El-Radaideh;Patient Safety in Surgery,2020