title: Comparing the outcome of tympanoplasties using bovine pericardium underlay xenografts versus butterfly inlay autografts.
authors.affiliation: Department of Otorhinolaryngology, Yiwu Central Hospital, Yiwu City, Zhejiang province, China.
authors.forename: Zhufang
authors.initials: Z
authors.lastname: Jiang
authors.affiliation: Department of Clinical Medicine, Xinxiang Medical University, Henan, 453003, China. yiwulouzihan@126.com.
authors.forename: Zihan
authors.initials: Z
authors.lastname: Lou