Metterlein, Thomas, Sabrina Negele, Christian Wunder, Norbert Roewer, and Frank Schuster. “Ultrasound-Guided Percutaneous Dilatational Tracheotomy: A Fast and Safe Technique for Airway Management: Preliminary Report of a Novel Technique”. Acta Medico-Biotechnica 1, no. 1 (September 18, 2021): 19-24. Accessed December 20, 2024. https://journals.um.si/index.php/amb/article/view/1296.