Funding for this research was provided by:
National Key R&D Program of China (2017YFA0105701)
Received: 2 December 2018
Revised: 15 March 2019
Accepted: 24 April 2019
First Online: 31 May 2019
Ethics approval and consent to participate
: Menstrual blood was obtained from volunteers after informed consent. All experimental protocols were approved by The Tab of Animal Experimental Ethical Inspection of the First Affiliated Hospital, College of Medicine, Zhejiang University, approval number 2016-(288).
: Not applicable.
: The authors declare that they have no competing interests.
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