1. Medical Research Center Oulu; Oulu University Hospital and University of Oulu; Finland
2. Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital; Harvard Medical School; Boston MA USA
3. Heart and Lung Center; Helsinki University Hospital; Helsinki Finland
4. Department of Internal Medicine; Päijät-Häme Central Hospital; Lahti Finland
5. Forensic Medicine Unit; National Institute for Health and Welfare; Oulu Finland
6. Department of Forensic Medicine, Research Unit of Internal Medicine, Medical Research Center Oulu; University of Oulu; Oulu Finland