1. Research Unit of Internal Medicine, Medical Research Center Oulu, University of Oulu and Oulu University Hospital , PO Box 5000, 90014 Oulu , Finland
2. Forensic Medicine Unit, Finnish Institute for Health and Welfare (THL) , PO Box 310, 90101 Oulu , Finland
3. Department of Forensic Medicine, Research Unit of Internal Medicine, Medical Research Center Oulu, University of Oulu , PO Box 5000, 90014 Oulu , Finland
4. Department of Medicine, División of Cardiology, University of Miami, Miller School of Medicine , Miami, FL 33136 , USA