1 Division of Cardiovascular Surgery, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Canada.
Received 27 October 2018. Revision received 11 December 2018.
Accepted 13 December 2018.
The authors declare no funding or conflicts of interest.
N.F. participated in performing surgery, the writing of the paper, participated in research design. V.B. and V.R. were supervisors and reviewed the final manuscript before submission and participated in research design.
Correspondence: Vivek Rao, MD, PhD, Peter Munk Cardiac Centre, University Health Network, University of Toronto. (email@example.com).