1Complications of cochlear implantation and clinical analysisQIU Jian-hua, CHEN Yang, TAN Pei, HAN Yu, GAO Lei, LU Yang, DU Bai-ru235-2392The contrastive analysis of 60 cases of ossicular chain reconstruction using different replacement prosthesesCHEN Yang, HAN Yu, LU Lian-jun, QIU Jan-hua240-2433Auditory outcomes and prognostic factors in canal wall-down tympanoplasty with single-stage ossiculoplastyZHANG Zhi-hua, HUANG Qi, WANG Zhao-yan, CHEN Qi, YANG Jun, WU Hao244-2474Clinical study of the infectd mastoid cavity after mastoidectomyTomur Ablez, ZENG Jin, MA Fu-rong248-2535The technique of mastoidotympanoplasty with epitympanoplasty in the treatment of cholesteatomatous otitis mediaLIU Yang, SUN Jian-jun, ZHAO Dan-heng254-2576Analysis of reoperations after radical mastoidectomyYANG Ning, JIANG Xue-jun, HUI Lian, LI Da258-2617Z-flap with combined surgical approach for hearing reconsctruction on congenital external and middle ear malformationZHONG Cheng, YUAN Wei, ZHANG Xue-yuan, CHEN Xiao-hong, JIANG Zhen-dong, LI Qi, XIANG Zhao-lan, FENG Ya-jin, LI Tai-jun, WEI Yun-jun262-2678Effects of middle infection on hydroxyapatite prosthesisLIU Yang, SUN Jianjun, ZHAO Jing, ZHAO Dan-heng268-2719Analysis of hearing loss in middle ear cholesteatomaPENG Li, YONG Jun, LIU Li-Zhong272-27410A clinical study on myringoplasty with pressed fat-patchZHANG Quan-an, LI Rong, FAN Meng-yun275-27911Endoscopic-assisted adipose graft myringoplastyZHENG Tao, TIAN Guang-yong, CAO Qing-shuo280-28112Repairing mastoidectomy cavity by mastoid periosteum flap282-28413Management of cholesteatoma: present status in GermanyYU Li-sheng285-29114Screening strategies for SLC26A4 gene hot spot mutation regions in patients with enlarged vestibular aqueduct in ChinaYUAN Yong-yi, WANG Guo-jian, HUANG De-liang, KANG Dong-yang, DAI Pu292-29515Roles of improving microcirculation in treatment of traumatic tympanic membrane perforationLOU Zheng-cai, HU Yun-xing, ZHANG Yan-hui, YANG Jian296-29816Clinical characteristics of tinnitus in the elderly: an analysis of 197 patientsLIU Zhi, CUI Peng-cheng, GAO Peng-fei, ZHONG Li-mei299-30217Extended high frequency audiometry in coal minersZHAI Chun-sheng, LIU Bo, LIU Hua, ZHONG Shuo, ZHAO Jian, MIAO Wei303-30618Audiological follow up in infants who have failed hearing screeningYANG Chong-ling, LIU Yu-qing, YE Qing, Wang You-qin, LI Fei, XUE Xiao-hong307-31119Play audiometry and auditory brainstem responses for hearing evaluation in young childrenLAI Chun-hong, XI Guo-ping, SONG Zhi-min312-31420Expression of Livin and p73 in human middle ear cholesteatomaPENG Li, Liu Li-zhong315-318 