1. School of Medicine, Shandong University, Jinan, Shandong Province, China
2. Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
3. Department of Otorhinolaryngology, Shenzhen Second People’s Hospital/The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, China