1. Center for Acute Respiratory Failure and Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University College of Physicians & Surgeons, New York, New York
2. Department of Anesthesia, Critical Care, and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
3. Division of Critical Care Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
4. Department of Medicine, St Joseph’s Hospital and McMaster University, Hamilton, Ontario, Canada
5. Soroka Clinical Research Center, Soroka University Medical Center, Beer-Sheva, Israel