. Author manuscript; available in PMC: 2019 Sep 10.
Published in final edited form as: J Biophotonics. 2019 Mar 11;12(9):e201800455. doi: 10.1002/jbio.201800455
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Figure 3.
PRISMA diagram. Flow diagram illustrating study selection