^○Ganeshwaran Hitoshi MOCHIDA^{1, 2, 3} (1.Division of Genetics and Genomics, Boston Children’s Hospital, Boston, MA, USA, 2.Pediatric Neurology Unit, Department of Neurology, Massachusetts General Hospital, Boston, MA, USA, 3.Department of Pediatrics, Harvard Medical School, Boston, MA, USA)

^○Kazuko TAKAYAMA^{1, 2} (1.Department of Neuromuscular Research, NCNP, Japan, 2.Department of Pediatrics, Toho University, Tokyo, Japan)

^○Murim Choi^{1, 2} (1.Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea,, 2.Department of Pediatrics, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, Korea)

^○Xu Wang (Department of Neurology, Beijing Children’s Hospital, The Capital University of Medical Sciences, Beijing, China)