1. AIT Austrian Institute of Technology GmbH, Bioresources Unit, 3430 Tulln a.d. Donau, Austria.
2. First Department of Internal Medicine, Paracelsus Medical University/Salzburger Landeskliniken, 5020 Salzburg, Austria.
3. Department of Internal Medicine III, Division of Endocrinology and Metabolism, Unit of Gender Medicine, Medical University of Vienna, 1090 Vienna, Austria.