- Correspondence to Professor Hongwei Ouyang, Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang Provincial, Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University, 866 Yu Hang Tang Road, Hangzhou 310000, China;
- Received 25 August 2016
- Revised 22 January 2017
- Accepted 21 February 2017
- Published online 17 March 2017.
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