Funding for this research was provided by:
national clinical key specialty construction project (national clinical key specialty construction project)
Article History
Received: 23 September 2019
Accepted: 24 October 2019
First Online: 22 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the Institutional Review Board of The First Affiliated Hospital of Harbin Medical University and was performed in line with Declaration of Helsinki and Good Clinical Practice guidelines. All patients provided written informed consents before recruitment.