TY - Journal of Otolaryngology and Ophthalmology of Shandong University A1 - SUN Zhen-feng,MENG Qing-hong,DONG Pin T1 - Y1 - 2006-06-24 JF - Journal of Otolaryngology and Ophthalmology of Shandong University JO - Journal of Otolaryngology and Ophthalmology of Shandong University SP - 223 EP - 224 VL - 20 IS - 3 UR - http://ebhyxbwk.njournal.sdu.edu.cn N1 - ER -