1. Department of Anaesthesia and Perioperative Medicine, University College London Hospital, London, UK
2. Clinical Research Associate, Stanford University School of Medicine, Stanford, CA, USA
3. Stanford University School of Medicine, Stanford, CA, USA
4. UAMS Library, University of Arkansas for Medical Sciences, Little Rock, AR, USA
5. Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium
6. Faculty of Health, University of Canberra, Canberra, Australia
7. Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, USA