1 Intensive Care Department, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, King Abdullah International Medical Research Center, College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. yaseenarabi@yahoo.com.
2 World Health Organization, Geneva, Switzerland.
3 Université de Sherbrooke, Centre de recherche du CHU, Sherbrooke, QC, Canada.