A successful Marathon of Clinical Ultrasound and POCUS within the Annual Conference Euroson POCUS School Vienna 2023, 4th Edition event organized by EUVEKUS under the aegis of EFSUMB and credited by EACCME. The event held at the Medical University of Vienna. We would like to thank the Speakers, leaders of prestigious European medical organizations: Wonca Europa, WFUMB, EFSUMB and EUVEKUS who during two days presented both in the theoretical sessions and especially in the WSs Hands On multiple applications of POCUS for Frontline Physicians ( Primary and Ambulatory Healthcare). We thank all the participants who came in such a large number, being present delegates from over 24 countries, and the leaders of Ultrasound Working Groups from Belgium, France, Poland, Spain, Italy, Poland, Romania, etc. A real medical revolution in terms of upgrading the classic clinical examination to the clinical-ultrasonographic examination for the benefit of our patients by increasing the diagnostic accuracy. Thanks to all the organizers and our sponsors GE Healthcare and Liamed.