Kothare S V, Adams R, Valencia I, Faerber E C, Grant M L
Division of Neurology, St. Christopher's Hospital for Children, Drexel University College of Medicine, Philadelphia, PA 19134, USA.
Neurology. 2007 Apr 3;68(14):1157-8. doi: 10.1212/01.wnl.0000258658.00692.36.