Affiliation: | 1. Committee on Pulmonary Function Testing, Japanese Society of Pediatric Pulmonology, Tokyo, Japan;2. Department of Pediatrics, Nippon Medical School Tama‐Nagayama Hospital, Tokyo, Japan;3. Department of Pediatrics, Asahikawa‐Kosei General Hospital, Hokkaido, Japan;4. Department of Pediatrics, Tokai University School of Medicine, Kanagawa, Japan;5. Department of Pediatrics, National Hospital Organization Tokushima Hospital, Tokushima, Japan;6. Department of Pediatrics, Kitasato University School of Medicine, Kanagawa, Japan;7. Department of Respirology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan |