1. Department of Otorhinolaryngology, Head and Neck Surgery, Shizuoka General Hospital
2. Department of Public Health, Osaka City University Graduate School of Medicine and Research Center for Infectious Disease Sciences, Osaka City University Graduate School of Medicine
3. Department of Pediatrics, Kawasaki Medical School
4. Global Vaccine Business Unit, Takeda Pharmaceutical Company Limited
5. Department of Pediatrics, Shizuoka Kosei Hospital