van Kraaij, T., Mostard, R., Ramiro, S., Magro Checa, C., van Dongen, C., van Haren, E.H., Buijs, J. and Landewé, R. 2020. Tocilizumab in Severe COVID-19 Pneumonia and Concomitant Cytokine Release Syndrome. European Journal of Case Reports in Internal Medicine. 7, 5 (Apr. 2020). DOI:https://doi.org/10.12890/2020_001675.