@inbook{1144115827, author={G. Burkhard Mackensen and Andreas Schuler}, editor={Longnecker, David E. and Mackey, Sean C. and Newman, Mark F. and Sandberg, Warren S. and Zapol, Warren M.}, title={Intraoperative Transesophageal Echocardiography: A Systematic Approach}, booktitle={Anesthesiology, 3e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2017}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=1144115827} }