1 Critical Care, Apollo Hospitals and the Chennai Critical Care Consultants Group, Chennai, India.
2 Anesthesia and Critical Care, ZOL Genk, Genk, Belgium.
3 Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Room D108, Toronto, ON, Canada. brian.cuthbertson@sunnybrook.ca.