1. School of Applied Social Sciences, Faculty of Health and Life Sciences, The Gateway, De Montfort University, Hawthorn Building, Leicester LE1 9BH, UK
2. Faculty of Health, Education and Life Sciences, Birmingham City University, Westbourne Road, Edgbaston, Birmingham B15 3TN, UK
3. Nurture Fertility, East Midlands Fertility Centre, 25 Business Park, Bostocks Lane, Sandiacre, Nottingham NG10 5QS, UK
4. Division of Obstetrics and Gynaecology, School of Clinical Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, UK