1. Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Medicine, and
2. HCor Research Institute, São Paulo, Brazil;
3. World Health Organization, Geneva, Switzerland;
4. Division of Respirology and Critical Care, Department of Medicine, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada;
5. Department of Medicine and
6. Department of Physiology, Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada; and
7. Department of Anesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India
8. Department of Anesthesia, University of California, San Francisco, San Francisco, California;