1. Medical Sciences Division, Northern Ontario School of Medicine, Lakehead University, Thunder Bay, Ontario, Canada.
2. Institute of Cardiovascular Sciences, St. Boniface General Hospital Research Center and Department of Physiology, Winnipeg, Manitoba, Canada.
3. Cardiac Sciences, Faculty of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada.
4. Department of Biophysics, Post Graduate Institute of Medical Education and Research, Chandigarh, India.