| Affiliation: | 1. Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, , Okayama, Japan;2. Department of Pediatrics, Nishi‐Kobe Medical Center, , Kobe, Japan;3. Department of Pediatrics, Kochi Health Sciences Center, , Kochi, Japan;4. Department of Pediatrics, Nippon Kokan Fukuyama Hospital, , Fukuyama, Japan;5. Department of Pediatrics, Kitano Hospital, The Tazuke Kofukai Medical Research Institute, , Osaka, Japan;6. Department of Pediatrics, Yamaguchi University Graduate School of Medicine, , Yamaguchi, Japan |
