1. Department of Obstetrics and Gynaecology, University Hospital of Berne, Berne, Switzerland
2. Division of Infectious Diseases, University Hospital of Berne, Berne, Switzerland
3. Division of Infectious Diseases, University Hospital of Zurich, Zurich, Switzerland
4. Division of Infectious Diseases, University Hospital of Geneva, Geneva, Switzerland
5. Infectious Diseases Services, University Hospital of Lausanne, Lausanne, Switzerland
6. Division of Infectious Diseases, University Hospital of Basel, Basel, Switzerland
7. Division of Internal Medicine, Cantonal Hospital of St Gall, St Gall, Switzerland
8. Division of Infectious Diseases, Cantonal Hospital of Lugano, Lugano, Switzerland
9. Division of Endocrinology, University Hospital of Berne, Berne, Switzerland