@inbook{1206214341, author={Joseph P. Mathew and Chakib M. Ayoub and Alina Nicoara and Madhav Swaminathan}, title={Anatomical Variants and Ultrasound Artifacts}, booktitle={Clinical Manual and Review of Transesophageal Echocardiography, 3e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=1206214341} }