1. Clínica Quilín, Faculty of Medicine, Universidad de Chile, Santiago, Chile;
2. Department of Medicine South, Faculty of Medicine, Universidad de Chile, Santiago, Chile;
3. Department of Endocrinology and CETREN, Faculty of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile;
4. School of Medicine, Universidad Finis Terrae, Santiago, Chile;
5. Clinic Institute of Gynecology, Obstetrics and Neonatology, Faculty of Medicine, University of Barcelona, Hospital Clinic-Institut d´Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain