1. From the National Amyloidosis Centre, Division of Medicine, University College London, Royal Free Hospital (M.F., J.D.G.), and Richmond Pharmacology (J.T.), London, and the Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, Glasgow (M.C.P.) — all in the United Kingdom; Boston University School of Medicine (J.L.B.) and the Cardiovascular Division, Brigham and Women’s Hospital (S.D.S.) — both in Boston; the Division of Cardiovascular...