1. McGill University, Montréal, QC, CA (A.F.H.A.M., D.D., B.d.V., G.S.).
2. Cardiac Surgery Division (A.F.H.A.M., D.D., B.d.V.), Royal Victoria Hospital, Montréal, QC, CA.
3. Critical Care and Echocardiography (G.S.), Royal Victoria Hospital, Montréal, QC, CA.