1. University of Nottingham; Division of Primary Care; Room 1502, Tower Building, University Park Nottingham Nottinghamshire UK NG7 2RD
2. La Trobe University; Judith Lumley Centre; 251 Faraday Street Melbourne Vic Australia 3000
3. Monash University; Department of Obstetrics and Gynaecology; 246 Clayton Road Clayton Victoria Australia 3168
4. Sorbonne Université, Faculté de medicine-Hopital Pitie-Salpetriere; Department of Pharmacology; 47-83 bd de l’Hopital Paris France 75013
5. University of Nottingham; Centre for Evidence Based Healthcare, Division of Epidemiology and Public Health, Clinical Sciences Building Phase 2; Nottingham City Hospital Hucknall Road Nottingham UK NG5 1PB