1. Christian Medical College and Hospital; Reproductive Medicine Unit; Ida Scudder Road Vellore Tamil Nadu India 632004
2. University of Aberdeen; Division of Applied Health Sciences; Aberdeen UK AB25 2ZL
3. Aberdeen Maternity Hospital; Obstetrics and Gynaecology; Foresterhill Aberdeen UK AB9 2ZD
4. University of Aberdeen; King's College Aberdeen UK AB24 3FX
5. Faculty of Medicine, Mansoura University; Obstetrics & Gynaecology; Mansoura Egypt