1. Department of Infectious Diseases; Satakunta Central Hospital; Pori Finland
2. Department of Internal Medicine; Tampere University Hospital; Tampere Finland
3. University of Tampere Medical School; University of Tampere; Tampere Finland
4. Centre for Laboratory Medicine; Pirkanmaa Hospital District; Tampere Finland
5. Department of Clinical Chemistry; Turku University; Turku Finland
6. TYKSLAB; Turku Univeristy Hospital; Hospital District of Southwest Finland; Turku Finland
7. Department of Biostatistics; Turku University; Turku Finland