1. St Mary's Hospital; Reproductive Medicine; Hathersage Road Manchester UK M13 0JH
2. University Hospitals Coventry and Warwickshire NHS Trust; Department of Obstetrics and Gynaecology; Coventry UK CV2 2DX
3. University of Warwick; Coventry UK CV4 7AL
4. The University of Auckland; Department of Obstetrics and Gynaecology; Park Rd Grafton Auckland New Zealand 1142
5. IVF Department. Burjeel hospital. Abu Dhabi. UAE; Department of Obstetrics, Gynaecology and Reproductive Medicine; Najda Street Abu Dhabi United Arab Emirates
6. University of Birmingham; Tommy’s National Centre for Miscarriage Research, Institute of Metabolism and Systems Research; Birmingham UK B15 2TG