Katzenschlager S, Hamp T, Dietrich M, Edmunds CT, Kaltschmidt N, Weigand MA, et al. Assess, improve, detect, guide: a narrative review and proposal for a standardized protocol for prehospital transesophageal echocardiography during out-of-hospital cardiac arrest. Ultrasound J [Internet]. 2025 Mar. 5 [cited 2026 Jan. 30];17(1):18. Available from: https://www.mattioli1885journals.com/index.php/theultrasoundjournal/article/view/18132