Xing Juanli1, He Dandan3, Wang Jie3, Zhu Hailu3, Gong Xiaoying3, Li Xinyang4, Liang Xuanyi2, Wang Mingxu2, Mi Baibing2, Ma Le3
1 Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Xi 'an Jiaotong University, Xi 'an 710061, China;
2 Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi 'an 710061, China;
3 School of Public Health, Xi′an Jiaotong University College of Medicine, Xi 'an 710061, China;.
4 School of Nursing, Xi'an Jiaotong University College of Medicine, Xi 'an 710061, China