European respiratory journal, 57(2). European Respiratory Society European Respiratory Journal, 57 European Respiratory Journal European Respiratory Journal, European Respiratory Society, 2021, 57 (6), ⟨10.1183/13993003.03317-2020⟩ European Respiratory Journal, 57, 6 The European respiratory journal, Vol. 57, no. 6, p. 2003317 [1-17] (2021)