1. School of Health Sciences University of Nottingham B302, Medical School Building, Queens Medical Centre Nottingham NG7 2UH UK
2. Faculty of Health Social Care, Education and Medicine Anglia Ruskin University East Road Cambridge CB1 1PT UK
3. Faculty of Health, Education, Medicine and Social Care Anglia Ruskin University East Road Cambridge CB1 1PT UK
4. Ely Primary Care Networks Staploe Medical Centre Brewhouse Lane Soham UK
5. Centre for Maternal and Child Health Research, School of Health Sciences, City University of London London EC1V 0HB UK
6. School of Public Health University College Cork Western Road Cork Ireland