1. Heart Institute, Cedars-Sinai Medical Center, Advanced Health Sciences Pavilion, Suite A3100, 127 S. San Vicente Blvd., Los Angeles, CA 90048, USA
2. Heart and Lung Center, Helsinki University Hospital, Meilahti Tower Hospital PL 340, 00029 HUS, Helsinki, Finland
3. Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 2001 N Soto Street, Los Angeles, CA 90032, USA
4. Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239, USA
5. Wake Forest School of Medicine, Medical Center Boulevard, Winston Salem, NC, USA