Bosch Xavier, Poch Esteban, Grau Josep M
Muscle Research Unit, Department of Internal Medicine, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain.
N Engl J Med. 2009 Jul 2;361(1):62-72. doi: 10.1056/NEJMra0801327.