1. From the Cardiovascular Research Center Aalst, OLV-Ziekenhuis, Aalst, Belgium (G.G.T., B.T., F.D.V., L.D.S., S.P., D.R., G.D.G., M.P., E.B., C.V.M., G.R.H., B.D.B., W.W.); University Heart Center Graz, Medical University of Graz, Graz, Austria (G.G.T.); and Weatherhead PET Center, University of Texas Medical School, Houston (N.P.J.).