1. Division of Obstetrics and Gynecology, Department of Human Reproduction, University Medical Centre Ljubljana, Ljubljana, Slovenia.
2. Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.
3. Division of Endocrinology, Diabetes, and Metabolism, University of South Carolina School of Medicine, Columbia, South Carolina, USA.
4. Department of Laboratory Medicine, DIBIMIS, University of Palermo, Italy.
5. Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia.
6. Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre Ljubljana, Ljubljana, Slovenia.