Color M-mode Doppler flow propagation of late diastolic velocity caused by left atrial-left ventricular pressure gradient: An animal study Junko Watanabe, Michael Jones, Takahiro Shiota, Fabrice Bauer, Hiroyuki Tsujino, Yongjin Kim, Mario J. Garcia, Jian Xin Qin, Marta Sitges, Agnese Travaglini, James D. Thomas. The Cleveland Clinic Foundation, Cleveland, OH, National Institutes of Health, Bethesda, MD