1. Department of Otorhinolaryngology‐Head and Neck Surgery The Third Affiliated Hospital Sun Yat‐sen University Guangzhou China
2. Otorhinolaryngology Hospital The First Affiliated Hospital Sun Yat‐sen University Guangzhou China
3. Department of Hematology The Third Affiliated Hospital Sun Yat‐sen University Guangzhou China
4. Department of Pediatrics The Third Affiliated Hospital Sun Yat‐Sen University Guangzhou China
5. Department of Otolaryngology National University Health System National University of Singapore Singapore Singapore