Funding for this research was provided by:
Marquette University
Article History
Received: 10 February 2019
Accepted: 15 October 2019
First Online: 31 October 2019
Competing interests
: The research described in this manuscript has been supported by a Marquette University startup grant to B.Y. and Smart Biophotonics, LLC, a company that could potentially benefit from the results of this research. BY is the owner of Smart Biophotonics, LLC. This interest in B.Y. has been reviewed by Marquette University in accordance with its Individual Conflict of Interest policy for the purpose of maintaining the objectivity and the integrity of research at Marquette University. B.Y. also received over 5% equity of Zenalux Biomedical, Inc., Durham, North Carolina. X.H., T.L. and L.F. declare no competing interests.