1 From the Pediatric Neurology Unit and Laboratories (R.G.), Children's Hospital A. Meyer-University of Florence; IRCCS Stella Maris (R.G.), Pisa; Department of Internal Medicine and Therapeutics (E.P.), University of Pavia; and Clinical Trial Center (E.P.), C. Mondino National Neurological Institute, Pavia, Italy. r.guerrini@meyer.it.
2 From the Pediatric Neurology Unit and Laboratories (R.G.), Children's Hospital A. Meyer-University of Florence; IRCCS Stella Maris (R.G.), Pisa; Department of Internal Medicine and Therapeutics (E.P.), University of Pavia; and Clinical Trial Center (E.P.), C. Mondino National Neurological Institute, Pavia, Italy.