ERJ Open Research, 8(1):00624-2021. BMJ Publishing Group Heijnen, N F L, Hagens, L A, van Schooten, F-J, Bos, L D J, van der Horst, I C C, Mommers, A, Schultz, M J, Smit, M R, Bergmans, D C J J, Smolinska, A & Schnabel, R M 2022, ' Breath octane and acetaldehyde as markers for acute respiratory distress syndrome in invasively ventilated patients suspected to have ventilator-associated pneumonia ', ERJ Open Research, vol. 8, no. 1, 00624-2021 . https://doi.org/10.1183/23120541.00624-2021 ERJ open research, 8(1):00624-2021. European Respiratory Society ERJ Open Research, 8(1):00624. European Respiratory Society