Funding for this research was provided by:
National Natural Science Foundation of China (81470657)
Article History
Received: 9 August 2018
Accepted: 6 March 2019
First Online: 20 March 2019
Ethics approval and consent to participate
: This study was conducted in accordance with the principles of the Declaration of Helsinki and was approved by the Ethics Committee of the Eye and ENT Hospital Review Board of Fudan University, with the ethics approval reference number 2014012. Written informed consent was obtained from all patients after the nature and possible consequences of the study were explained.
: No author has a proprietary or commercial interest in the materials or methods mentioned here.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.