1. Division of Cardiovascular Diseases; Department of Medicine; Mayo Clinic; 200 First Street SW Rochester MN 55905
2. School of Medicine; University of Queensland; Herston Qld 4006 Australia
3. Department of Medicine; Caboolture Hospital McKean Street; Caboolture Qld 4510 Australia
4. University of Arkansas for Medical Sciences; 4301 W Markham St Little Rock AR 72205
5. Forensic Medicine Division; Department of Pathology; College of Medicine; University of Dammam; Dammam 31441 Saudi Arabia (KSA)