1. From the Department of Anesthesiology (H.S.-J., K.S.), Institute for Experimental Medical Research (H.S.-J.), Department of Acute Medicine (E.R.N., D.J.), Department of Cardiology (E.F., A.M., J.E., G.Ø.A.), and Department of Research and Development (T.D.), Oslo University Hospital Ulleval, Oslo, Norway; and Center for Heart Failure Research (A.M., J.E., G.Ø.A.), and Insititute of Clinical Medicine (D.J., K.S.), University of Oslo, Norway.