Funding for this research was provided by:
Foundation for the National Institutes of Health (Intramural program)
Received: 12 April 2019
Accepted: 22 October 2019
First Online: 15 November 2019
Ethics approval and consent to participate
: All animal procedures were performed according to NIH Guide for Care and Use of Laboratory Animals.The animal study protocol (LMS-HK-13) was approved by the Institutional Animal Care and Use Committee.
: Not applicable.
: The authors declare that they have no competing interests.