1. Division of Obstetrics and Maternal Fetal Medicine, Department of Obstetrics and Gynecology; Medical University of Graz; Graz Austria
2. Division of Child Health, Obstetrics & Gynaecology, School of Medicine; University of Nottingham; Nottingham UK
3. Department of Obstetrics and Gynecology, Medical School of Ribeirao Preto; University of Sao Paulo; Ribeirao Preto Brazil
4. Clinical Academic Office, Medical School; Newcastle University; Newcastle UK
5. Nurture Fertility; The East Midlands Fertility Centre; Nottingham UK