1. Department of Otolaryngology, West China Hospital, Sichuan University, Chengdu, People's Republic of China.
2. Division of Upper Airway Disease, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, People's Republic of China.
3. Laboratory of Drug Targeting, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China.