1 Cardiovascular Research Institute, Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore, Singapore. mdclow@nus.edu.sg.
2 Cardiovascular Research Institute, Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore, Singapore.
3 Department of Biological Sciences, National University of Singapore, Singapore, Singapore.
4 Laboratory for Optics & Applied Mechanics, Department of Mechanical & Aerospace Engineering, Monash University, Clayton, VIC, Australia.
5 Christchurch Heart Institute, University of Otago, Christchurch, New Zealand.