Department of Otolaryngology Head and Neck Surgery, Shanxi Medical University Second Affiliated Hospital, Taiyuan, Shanxi, China.Department of Clinical Laboratory Medicine, Shanxi Bethune Hospital & Shanxi Academy of Medical Sciences, Taiyuan, Shanxi, China.Department of Otolaryngology Head and Neck Surgery, Shanxi Medical University Second Affiliated Hospital, Taiyuan, Shanxi, China. Electronic address: fahyj@126.com.