Feasibility of basic transesophageal echocardiography in hemorrhagic shock: potential applications during resuscitative endovascular balloon occlusion of the aorta (REBOA) oleh William A. Teeter, Bianca M. Conti, Phil J. Wasicek, Jonathan J. Morrison, Dawn Parsell, Bryan Gamble, Melanie R. Hoehn, Thomas M. Scalea, Samuel M. Galvagno