1. Department of Infectious Diseases; University of Gothenburg; Gothenburg Sweden
2. Infectious Diseases Clinic; Borås Hospital; Borås Sweden
3. Department of Clinical Sciences; Malmö University Hospital; Malmö Sweden
4. Chalmers University of Technology; Gothenburg Sweden
5. Infectious Diseases Clinic; Central Hospital; Skövde Sweden
6. Division of Infectious Diseases; Karolinska Institute, Karolinska University Hospital Huddinge; Stockholm Sweden