[1] Univ Washington, Div Cardiol, Seattle, WA USA
[2] Univ Washington, Dept Bioeth & Humanities, Dept Med, Seattle, WA USA
[3] Univ Penn, Dept Emergency Med, Philadelphia, PA USA
[4] Cleveland Clin Abu Dhabi, Integrated Hosp Care Inst, Div Crit Care, Abu Dhabi, U Arab Emirates
[5] Cleveland Clin Abu Dhabi, Integrated Hosp Care Inst, Div Anesthesiol, Abu Dhabi, U Arab Emirates
[6] Univ Arizona, Dept Emergency Med, Tucson, AZ USA
[7] Mayo Clin, Echocardiog Lab, Rochester, MN USA
[8] Duke Univ, Sch Med, Durham Vet Hlth Adm, Durham, NC USA
[9] Univ Wisconsin, Dept Emergency Med, Madison, WI USA
[10] Northwestern Univ, Echocardiog Lab, Chicago, IL USA
[11] Queens Univ, Dept Med, Kingston, ON, Canada
[12] Sci Hist Inst, Philadelphia, PA USA
[13] Scripps Mercy Hosp, Echocardiog & Vasc Ultrasound Lab, San Diego, CA USA
[14] SUNY Stony Brook, Renaissance Sch Med, Div Cardiol, Stony Brook, NY USA
[15] NCH Rooney Heart Inst, Dept Cardiovasc Sci, Naples, FL USA
[16] Univ Michigan, Congenital Heart Ctr, Ann Arbor, MI USA
[17] Univ Calgary, Div Gen Internal Med, Calgary, AB, Canada
[18] Donald & Barbara Zucker Sch Med Hofstra Northwell, LIJ NSUH Med Ctr, Div Pulm Crit Care & Sleep Med, Hempstead, NY USA
[19] Dalhousie Univ, Womens Heart Hlth Clin, Halifax, NS, Canada
[20] Univ Washington, Dept Anesthesia & Pain Med, Seattle, WA USA
[21] Stanford Univ, Dept Anesthesiol Perioperat & Pain Med, Stanford, CA USA
[22] Massachusetts Gen Hosp, Heart Ctr, Boston, MA USA
[23] Harvard Med Sch, Boston, MA USA
[24] Univ Kentucky, Gill Heart & Vasc Inst, Lexington, KY USA
[25] Baylor Univ, Dept Med, Houston, TX USA
[26] Univ Pittsburgh, Dept Med, Pittsburgh, PA USA
[27] Philippine Heart Ctr, Quezon City, Philippines
[28] Ente Osped Cantonale EOC, Ist Cardioctr Ticino, Lugano, Switzerland
[29] Thomas Jefferson Univ, Div Pulm & Crit Care Med, Philadelphia, PA USA
[30] Amer Soc Echocardiog, Meridian Corp Ctr, 2530 Meridian Pkwy,Suite 450, Durham, NC 27713 USA