Affiliation: | 1. NHLBI Light Microscopy Facility, National Institutes of Health, Bethesda, Maryland, U.S.A.;2. NICHD Division of Basic and Translational Biophysics, National Institutes of Health, Bethesda, Maryland, U.S.A.;3. NHLBI Laboratory for Advanced Microscopy and Biophotonics, National Institutes of Health, Bethesda, Maryland, U.S.A. |