1. From the Institute for Surgical Research (E.W.R., E.L., T.H.-V., A.O., E.P., T.V., T.E., O.A.S.), Rikshospitalet University Hospital and University of Oslo, and Department of Cardiology (A.R., H.I., T.E.), Rikshospitalet University Hospital, Oslo, Norway; and Department of Heart and Lung Disease, Østfold Hospital, Fredrikstad, Norway (M.L.).