Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography 2017 https://researcherprofiles.org/profile/1210685 28410946 Howley LW, Khoo NS, Moon-Grady AJ, Patel SS, Alrais F, Tworetzky W, Colen T, Brooks P, Trines J, Ojala T, Hornberger LK