Funding for this research was provided by:
Natural Science Foundation of Liaoning Province (2015020473)
Received: 14 December 2018
Accepted: 4 July 2019
First Online: 18 July 2019
Ethics approval and consent to participate
: In the original article of the datasets, the trials were approved by the local institutional review boards of all participating centres and informed consent was obtained from all patients.
: Patients provided written informed consent.
: The authors declare that they have no competing interests.