1. Women's Health Research Unit, Wolfson Institute of Population Health Sciences, Queen Mary University of London, Barts and The London School of Medicine and Dentistry
2. School of Health Sciences, Institute for Lifecourse Development: Centre for Chronic Illness and Ageing, Faculty of Education, Health & Human Sciences, University of Greenwich
3. Queen Mary University of London Barts and The London School of Medicine and Dentistry, London, UK