1. School of Information and Communication Engineering University of Electronic Science and Technology Chengdu P. R. China
2. Department of Otorhinolaryngology Head and Neck Surgery Yongchuan Hospital Affiliated to Chongqing Medical University Yongchuan Chongqing P. R. China
3. Jiangxi Provincial People's Hospital Nanchang Jiangxi P. R. China
4. The First People's Hospital of Neijiang Neijiang Sichuan P. R. China
5. The Second People's Hospital of Yibin Yibin City Sichuan Province P. R. China
6. Nanchong Central Hospital Nanchong City Sichuan Province P. R. China
7. Luoyang Central Hospital Affiliated to Zhengzhou University Luoyang City Henan P. R. China
8. Dali Bai Autonomous Prefecture People's Hospital Zibo Shandong P. R. China
9. The First Hospital of Zibo Zibo Shandong P. R. China
10. Zigong Fourth People's Hospital Zigong City Sichuan P. R. China
11. Yuncheng Central Hospital Yuncheng City Shanxi P. R. China
12. Suining Central Hospital Suining City Sichuan P. R. China
13. The Affiliated Hospital of Northwest University (Xi'an NO. 3 hospital) Xi'an Shaanxi P. R. China
14. Department of Geratology Hospital of Xinjiang Province Urumqi Xinjang P. R. China
15. Department of Anesthesiology The First Affiliated Hospital of Chongqing Medical University Chongqing P. R. China
16. Department of Otolaryngology Nuclear Industry 416 Hospital The second Affiliated Hospital of Chengdu Medical College Chengdu Sichuan P. R. China
17. Department of Anesthesiology Shenzhen People's hospital Shenzhen Guangdong P. R. China
18. West P. R. China Hospital of Sichuan University Chengdu Sichuan P. R. China
19. The People's Hospital Of Lesh Leshan City Sichuan Province P. R. China