Katzenschlager, Stephan, Thomas Hamp, Maximilian Dietrich, Christopher T. Edmunds, Nikolai Kaltschmidt, Markus A. Weigand, Mario Krammel, Frank Weilbacher, and Erik Popp. “Assess, Improve, Detect, Guide: A Narrative Review and Proposal for a Standardized Protocol for Prehospital Transesophageal Echocardiography During Out-of-Hospital Cardiac Arrest”. The Ultrasound Journal 17, no. 1 (March 5, 2025): 18. Accessed January 30, 2026. https://mattioli1885journals.com/index.php/theultrasoundjournal/article/view/18132.