Affiliation: | 1. Department of Emergency Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China;2. Department of Emergency & Critical Care Medicine, Guangdong Provincial People's Hospital, Guangzhou 510080, China;3. The People's Hospital of Linzhi City, Linzhi 860000, China;4. Department of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen Univer-sity, Guangzhou 510080, China |