Transesophageal echocardiography and noncardiac surgery: how far does the nondiagnostic use go?
Mahmood, Feroze, and Madhav Swaminathan. 2012. “Transesophageal Echocardiography and Noncardiac Surgery: How Far Does the Nondiagnostic Use Go?”. J Cardiothorac Vasc Anesth 26 (2): 356-7.