Funding for this research was provided by:
Jiangsu Provincial Special Program of Medical Science (BL2012004)
Jiangsu Provincial Clinical Orthopedic Center
the Priority Academic Program Development of Jiangsu Higher Education Institutions
Received: 8 October 2017
Accepted: 2 January 2018
First Online: 2 February 2018
: GC and YW are first authors.
: The study was carried out with the approval by First Affiliated Hospital of Soochow University Medical Ethics Committee. All patients consented to participate.
: Permission from patients to publish their data has been obtained.
: The authors declare that they have no competing interests.
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