1. From the Division of Cardiology, Department of Internal Medicine II, University of Vienna, Vienna, Austria (M.G., A.K., S.Z., W.S., C. Strehblow, S.G., G. Mundigler, H.S., G. Maurer, D.G.); Cardiac Catheterization Laboratory (J.K., E.J.) and Department of Clinical Physiology (B.H., K.T.), University Hospital Rigshospitalet, Copenhagen, Denmark; Department of Cardiology, Skejby Sygehus, Aarhus, Denmark (H.E.B., S.S.N.); Institute of Cardiology, Warsaw, Poland (W.R., A.T.); Institute of Cardiology,...