1. Clinic Institute of Gnyecology, Obstetrics and Neonatology, Faculty of Medicine, University of Barcelona, Hospital Clinic-Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
2. Menopause Center, Department of Obstetrics and Gynecology, University of Pisa, Pisa, Italy
3. Department of Obstetrics and Gynecology, University of Valencia, Valencia, Spain
4. Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
5. Department of Clinical and Experimental Endocrinology, Medical University of Gdańsk, Gdańsk, Poland
6. Department of Gynecological Endocrinology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
7. Hospital for True Naturopathy, Katholisches Klinikum Bochum, Blankenstein Hospital, Hattingen, Germany
8. Institut für Angewandte Statistik (IAS) GmbH, Bielefeld, Germany
9. Clinical Research, Schaper & Brümmer GmbH & Co. KG, Salzgitter, Germany
10. Medical Service, Schaper & Brümmer GmbH & Co. KG, Salzgitter, Germany