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In this article published in AJTR, a minor error has been raised by us. The correct name of the unit is Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University).
1Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou 570311, Hainan Province, P. R. China.
