10.6084/m9.figshare.10001201.v1 Pablo Blanco Pablo Blanco MOESM4 of Ultrasound-guided peripheral venous cannulation in critically ill patients: a practical guideline Springer Nature 2019 Ultrasound Point-of-care Peripheral venous catheterization 2019-10-18 09:28:04 Media https://springernature.figshare.com/articles/media/MOESM4_of_Ultrasound-guided_peripheral_venous_cannulation_in_critically_ill_patients_a_practical_guideline/10001201 Additional file 4: Video S4. Real-time two-dimensional ultrasound imaging in long axis showing stagnant blood within the vein lumen after applying a tourniquet.