individual publications academic article Propagated Endothelial Ca2+ Waves and Arteriolar Dilation In Vivo: Measurements in Cx40BAC–GCaMP2 Transgenic Mice . Circulation Research. 101:1300-1309. 2007 Imaging cellular signals in the heart in vivo: Cardiac expression of the high-signal Ca2+ indicator GCaMP2 2006