1. Division of Gynecological Endocrinology and Reproductive Medicine, Department of Obstetrics and Gynecology, Medical University of Vienna, 1090 Vienna, Austria
2. Division of Obstetrics and Fetomaternal Medicine, Department of Obstetrics and Gynecology, Medical University of Vienna, 1090 Vienna, Austria
3. Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria
4. Health Care Centre Mariahilf, ÖGK and Rheumatology Department, Sigmund Freud Private University, 1060 Vienna, Austria