TY - Journal of Otolaryngology and Ophthalmology of Shandong University A1 - SHI Li,SHI Bao-yuan,LI Xue-zong,XU Hao-jie T1 - Y1 - 2006-12-24 JF - Journal of Otolaryngology and Ophthalmology of Shandong University JO - Journal of Otolaryngology and Ophthalmology of Shandong University SP - 512 EP - 513 VL - 20 IS - 6 UR - http://ebhyxbwk.njournal.sdu.edu.cn N1 - ER -