A brief history of point-of-care transesophageal echocardiography in the USA

^aDivision of Pulmonary, Department of Medicine, Allergy & Critical Care Medicine

^bDivision of Hospital Medicine, Department of Medicine

^cDepartment of Emergency Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA

Received 14 September 2020 Accepted 17 September 2020

Correspondence to Frances Mae West, MD, Division of Pulmonary, Department of Medicine, Allergy & Critical Care Medicine, Thomas Jefferson University, 834 Walnut Street, Suite 650, Philadelphia, PA 19107, USA, Tel: +215 955 1671; e-mail: [email protected]