Funding for this research was provided by:
National Natural Science Foundation of China (61761166002)
Fundamental Research Funds for the Central Universities
Received: 15 May 2018
Accepted: 13 May 2019
First Online: 28 May 2019
Ethics approval and consent to participate
: The current study was approved by the Medical Ethics Committee of Shanghai Yangzhi Rehabilitation Hospital (reference No. 17YZ101). All patients signed an informed consent form prior to participating in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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