Funding for this research was provided by:
Shanghai Municipal Health Bureau (PWRd2014-10)
Pudong New Area Science and Technology Development Fund (PKJ2017-Y40)
Received: 18 December 2018
Accepted: 19 November 2019
First Online: 16 December 2019
Ethics approval and consent to participate
: The study was approved by the Medical Ethics Committees of Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital (2014-C-053-E01). All patients signed informed consent documents. The information letter clarified that participation was voluntary, and that they could withdraw their participation at any time without any consequences for none of them. All patients gave their consent to participate in this study.
: Not applicable.
: The authors declare that they have no competing interests.