1. Department of Otolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
2. School of Materials Science and Engineering,Tsinghua University, Beijing 100084, China
3. Hearing Implant Centre, Guy’s and St. Thomas NHS Foundation Trust, London SE1 7EH, United Kingdom
4. Centre for Craniofacial and Regenerative Biology, King’s College London, London SE1 9RT, United Kingdom
5. Clinical Center for Hearing Loss, Capital Medical University, Beijing 100050, China