Zachariasse, J.M. Nieboer, D. Maconochie, I.K. Smit, F.J. Alves, C.F. Greber-Platzer, S. Tsolia, M.N. Steyerberg, E.W. Avillach, P. van der Lei, J. Moll, H.A., Development and validation of a Paediatric Early Warning Score for use in the emergency department: a multicentre study, The Lancet Child and Adolescent Health, (4), 583-591, 2020, Elsevier B.V.,