1. Department of Obstetrics and Gynecology, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen, AB25 2ZD, UK
2. Division of Applied Health Sciences, University of Aberdeen, Polwarth Building, Foresterhill, Aberdeen, AB25 2ZD, UK
3. Department of Endocrinology, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, UK