ERJ open research, 7(3):00143-2021. European Respiratory Society ERJ Open Research, 7(3):00143-2021. European Respiratory Society ERJ Open Research article-version (VoR) Version of Record ERJ Open Research, Vol 7, Iss 3 (2021) ERJ open research r-IIS La Fe. Repositorio Institucional de Producción Científica del Instituto de Investigación Sanitaria La Fe instname Santos-Valente, E, Buntrock-Döpke, H, Abou Taam, R, Arasi, S, Bakirtas, A, Lozano Blasco, J, Bønnelykke, K, Craiu, M, Cutrera, R, Deschildre, A, Elnazir, B, Fleming, L, Frey, U, Gappa, M, García, A N, Hansen, K S, Hanssens, L, Jahnz-Rozyk, K, Jesenak, M, Kerzel, S, Kopp, M V, Koppelman, G H, Krivec, U, Macleod, K A, Mäkelä, M, Melén, E, Mezei, G, Moeller, A, Moreira, A, Pohunek, P, Minić, P, Rutjes, N W P, Sammut, P, Schwerk, N, Szépfalusi, Z, Turkalj, M, Tzotcheva, I, Ulmeanu, A, Verhulst, S, Xepapadaki, P, Niggel, J, Vijverberg, S, Maitland-Van der Zee, A H, Potočnik, U, Reinartz, S M, van Drunen, C M & Kabesch, M 2021, ' Biologicals in childhood severe asthma : the European PERMEABLE survey on the status quo ', ERJ Open Research, vol. 7, no. 3, 00143-2021 . https://doi.org/10.1183/23120541.00143-2021