RT Journal T1 A1 ZHANG Hua,ZONG Shu,ZHANG Qing-quan PB Journal of Otolaryngology and Ophthalmology of Shandong University FD 2006-12-24 YR 2006 JF Journal of Otolaryngology and Ophthalmology of Shandong University JO Journal of Otolaryngology and Ophthalmology of Shandong University VO 20 IS 6 SP 569 DO K1 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; LK {http://ebhyxbwk.njournal.sdu.edu.cn/EN/article/article_330.shtml}