1. Department I of Internal Medicine University of Cologne, Faculty of Medicine and University Hospital Cologne Cologne Germany
2. Intensive Care in Hematologic and Oncologic Patients (iCHOP) Cologne Germany
3. Department of Medicine I Intensive Care Unit 13i2, Comprehensive Cancer Center Center of Excellence in Medical Intensive Care (CEMIC) Medical University of Vienna Vienna Austria
4. Medical Intensive Care Unit St Louis Teaching HospitalPublic Assistance Hospitals of Paris Paris France
5. Department of Critical Care King's College Hospital National Health Service Foundation Trust London United Kingdom
6. Department of Medicine III University HospitalLudwig‐Maximilians University Munich Munich Germany
7. Munich Comprehensive Cancer Center University HospitalLudwig‐Maximilians University Munich Munich Germany
8. Bavarian Center for Cancer Research Munich Germany
9. Nine‐i Multinational Research Network, Service de Médecine Intensive et Réanimaton Médicale, Hôpital Saint‐Louis France