1. Intensive Care Unit, Department of Acute Medicine, University Hospital Basel, Basel, Switzerland
2. Department of Anaesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany
3. Department of Computational Linguistics, University of Heidelberg, Heidelberg, Germany
4. Interdisciplinary Centre for Scientific Computing, Statistical Natural Language Processing Group, University of Heidelberg, Heidelberg, Germany
5. Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Centro de Ciências da Saúde, Avenida Carlos Chagas Filho, Rio de Janeiro, Brazil
6. Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
7. Department of Anesthesia and Intensive Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy.