1. From the Molecular Cardiology and Electrophysiology Laboratory (S.G.P.), Fondazione S. Maugeri, IRCCS, Pavia, Italy; Institut de Pharmacologie Moleculaire et Cellulaire (J.B.), Laboratoire de Genetique de la Neurotrasmission, CNRS, Valbonne, France; University Hospital of Utrecht, Heart Lung Institute (R.N.W.H.), Netherlands; Medizinische Klinik und Poliklinik (W.H.), Innere Medizin C-Universitat Munster, Germany; Physiologic Laboratory (H.J.J.), University of Utrecht, Netherlands; Department of...