1 Department of Anesthesia & Perioperative Care University of California San Francisco, San Francisco, California University of Otago, Christchurch Hospital, Christchurch, New Zealand Services Organization and Clinical Interventions Unit (SCI), Service Delivery and Safety Department (SDS), Health Systems and Innovation (HIS), World Health Organization, Switzerland Department of Anaesthesiology, University of Auckland Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand.