1 From the Hospital Clínic Barcelona (A.U.), University of Barcelona; and Muscle Research Unit ( J.M.G., J.C.M.), Internal Medicine Service, Hospital Clínic de Barcelona and CIBERER, Spain.
2 From the Hospital Clínic Barcelona (A.U.), University of Barcelona; and Muscle Research Unit ( J.M.G., J.C.M.), Internal Medicine Service, Hospital Clínic de Barcelona and CIBERER, Spain. jcmilise@clinic.ub.es.