Heldeweg, M L A 2023, ' Lung ultrasound in critical care ', Doctor of Philosophy, s.l. . < https://research.vu.nl/ws/portalfiles/portal/217214490/thesis+-+micah+heldeweg+-+without+cover+-+63f2519b19308.pdf > Heldeweg, M L A 2023, ' Lung ultrasound in critical care ', PhD, Vrije Universiteit Amsterdam, s.l. . https://doi.org/10.5463/thesis.121