1. Department of Infectious Diseases Odense University Hospital Odense C Denmark
2. Department of Infectious Diseases Copenhagen University Hospital Rigshospitalet Copenhagen Denmark
3. Department of Public Health The Research Unit of General Practice University of Southern Denmark Odense Denmark
4. Department of Internal Medicine Kolding Sygehus Kolding Denmark
5. Fight AIDS Foundation Germans Trias i Pujol University Hospital Badalona Barcelona Spain