Lieveld, A W E 2023, ' Acute and critical care diagnostics in COVID-19 : With a special emphasis on point-of-care ultrasound ', Doctor of Philosophy, Vrije Universiteit Amsterdam, s.l. . < https://research.vu.nl/en/publications/acute-and-critical-care-diagnostics-in-covid-19-with-a-special-em > Lieveld, A W E 2023, ' Acute and critical care diagnostics in COVID-19 : With a special emphasis on point-of-care ultrasound ', PhD, Vrije Universiteit Amsterdam, s.l. . https://doi.org/10.5463/thesis.179