[1] Univ Hlth Network, Peter Munk Cardiac Ctr, 585 Univ Ave, Toronto, ON M5G 2N2, Canada
[2] Univ Toronto, Lawrence S Bloomberg Fac Nursing, Toronto, ON, Canada
[3] Queensland Univ Technol QUT, Sch Nursing, Brisbane, Qld, Australia
[4] Univ New South Wales, Rural Clin Sch, Coffs Harbour, NSW, Australia
[5] Coffs Harbour Hlth Campus, Dept Anaesthesia, Coffs Harbour, NSW, Australia