Yuka Ishikawa -
Department of Pediatrics National Yakumo Hospital and Department of Pediatrics Sapporo University of Medicine Hokkaido, Japan
John R Bach -
Department of Physical Medicine and Rehabilitation University of Medicine and Dentistry of New Jersey (UMDNJ)-New Jersey Medical School Jerry Lewis Muscular Dystrophy Association Clinic UMDNJ-New Jersey Medical School Center for Ventilatory Management Alternatives University Hospital, Newark and Kessler Institute for Rehabilitation West Orange, NJ, USA