1 London Health Sciences Centre, London, Ontario, Canada.
2 Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China.
3 Hillel-Yaffe Medical Center, Hadera.
4 Ziv Medical Center, Zefat, Israel.
5 Detroit Medical Center, Detroit Heart Hospital, Wayne State University, Detroit, Michigan, USA.
6 Keele Cardiovascular Research Group, Centre for Prognosis Research, Institute for Primary Care and Health Sciences, Keele University, Stoke-on-Trent, UK.