1. Department of Anesthesia, Glasgow Royal Infirmary, United Kingdom
2. School of Medicine, University of Glasgow, United Kingdom
3. Department of Medical Physics, National Health Service Greater Glasgow and Clyde, United Kingdom
4. Centre for Women’s Health, Institute of Population Health Sciences, Queen Mary University, London, United Kingdom
5. Medical Research Council Integrative Epidemiology Unit at the University of Bristol, United Kingdom
6. Population Health Science, Bristol Medical School, United Kingdom
7. Bristol National Institute for Health Research Biomedical Research Centre, Bristol, United Kingdom