AUTHOR=Bub Gil , Rubart Michael TITLE=Editorial: Recent Developments in Micron-Scale Optical Imaging of Intact, Living Heart and Vasculature JOURNAL=Frontiers in Physiology VOLUME=7 YEAR=2016 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2016.00490 DOI=10.3389/fphys.2016.00490 ISSN=1664-042X