1. Department of Anesthesiology, The Affiliated Huaian Hospital of Xuzhou Medical University and Huaian Second People’s Hospital, Huaian, Jiangsu, China (mainland)
2. Department of Ear, Nose and Throat, The Affiliated Huaian Hospital of Xuzhou Medical University and Huaian Second People’s Hospital, Huaian, Jiangsu, China (mainland)