Funding for this research was provided by:
Natural Science Foundation of Jiangsu Province (BK20151212, BK20160346)
National Natural Science Foundation of China (81770260, 81600217)
Jiangsu Province’s Key Discipline/Laboratory of Medicine (XK201118)
Jiangsu Clinical Research Center for Cardiovascular Surgery (BL201451)
Received: 24 April 2018
Revised: 25 June 2018
Accepted: 6 July 2018
First Online: 23 August 2018
Change Date: 11 June 2019
Change Type: Correction
Change Details: The authors have retracted this article  because there is erroneous data in Figure 1C. Flow cytometry results of EPC cell markers CD31 and CD45 could not be replicated. Due to incorrect cell markers, the cells cultured may not have been pure EPCs. Therefore the scientific content of the article is no longer reliable. All authors agree to this retraction.
Ethics approval and consent to participate
: The experiment protocols were approved by the Ethic Committee of Soochow University (reference number: SZUM2008031233).
: All authors have contributed to, read and approved the final manuscript for submission.
: The authors declare that they have no competing interests.
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