The authors reply

Affiliations

• ¹ Department of Anesthesiology, Intensive Care, Emergency and Pain Medicine, University Hospital Wuerzburg, Wuerzburg, Germany.
• ² Department of Anaesthesiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
• ³ Department of Dietetics and Nutrition, Ng Teng Fong General Hospital, Singapore.
• ⁴ Departments of Anesthesiology and Intensive Care Medicine, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany.
• ⁵ Clinical Epidemiology Program, The Ottawa Hospital Research Institute, Ottawa, ON, Canada.
• ⁶ Department of Critical Care Medicine, Clinical Evaluation Research Unit, Queen's University, Kingston, ON, Canada.