Hiro Matsukura1, Serina Majima2, Tomoko Sakuma3. 1. Department of Pediatrics, Saiseikai Takaoka Hospital, Takaoka, Japan. matsukura@5x2.de. 2. Department of Pediatrics, JA Toyama Kouseiren Takaoka Hospital, Takaoka, Japan and from April 01, 2022, present affiliation is Department of Pediatrics, Kurobe City Hospital, Kurobe, Japan. 3. Department of Pediatrics, JA Toyama Kouseiren Takaoka Hospital, Takaoka, Japan.