Received: 14 August 2019
Accepted: 13 December 2019
First Online: 9 January 2020
Ethics approval and consent to participate
: The current study was approved by the Ethics Committee of China-Japan Union Hospital of Jilin University and all experiment protocols abided by the Declaration of Helsinki. Signed informed consents were obtained from all participants prior to the study. All animal experiments were approved by the Animal Ethics Committee of China-Japan Union Hospital of Jilin University, and all measures were undertaken to minimize the usage of animals as well as their suffering.
: Not applicable
: The authors declare that they have no competing interests.