[1] Zhejiang Hosp, Dept Ophthalmol, Hangzhou, Zhejiang, Peoples R China
[2] Zhejiang Univ, Affiliated Hosp 2, Dept Ophthalmol, Sch Med, Hangzhou, Zhejiang, Peoples R China
[3] Zhejiang Hosp, Dept Otorhinolaryngol, Lingyin Rd 12, Hangzhou 310013, Zhejiang, Peoples R China