Roeseler, J., Jolliet, P., Watremez, C., Detry, B., Clerbaux, T., Gianello, P., De Kock, M., & Liistro, G. (2003). The comparative effect of helium-oxygen and external peep in mechanically ventilated COPD patients. Intensive Care Medicine, 29(1 Suppl), S17-S17. https://hdl.handle.net/2078.5/141852 (Original work published 2003)