From Thoraxcenter, Erasmus Medical Center, Rotterdam, the Netherlands (J.D., E.B., P.W.S.); Clinical Trials and Evaluation Unit, Royal Brompton Hospital, London, UK (M.F., J.B., R.S.); Otamendi Hospital, Buenos Aires, Argentina (A.R., G.R.-G.); and Heart Institute (InCor), University of São Paulo Medical School, São Paulo, Brazil (W.A.H., P.A.L.). (At 2008-09-09)
