[1] Univ Penn, Dept Neurol, Philadelphia, PA USA
[2] UCL, Royal Free Hosp, Div Med, Natl Amyloidosis Ctr, London, England
[3] AstraZeneca, Cambridge, England
[4] Hlth Econ & Outcomes Res Ltd, Cardiff, Wales
[5] AstraZeneca, Gaithersburg, MD USA
[6] Ionis Pharmaceut Inc, Carlsbad, CA USA