Funding for this research was provided by:
National Natural Science Foundation of China (31370905, 31540015)
Natural Science Foundation of Shandong Province (ZR2016HM77)
Received: 12 November 2017
Revised: 11 January 2018
Accepted: 15 January 2018
First Online: 14 February 2018
Change Date: 14 September 2022
Change Type: Correction
Change Details: This article has been retracted. Please see the Retraction Notice for more detail:
Change Details: https://doi.org/10.1186/s13287-022-03173-8
: No applicable.
: Animals were treated in accordance with the Basel Declaration in the context of phase experimental animals.
: Not applicable.
: The authors declare that they have no competing interests.
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