1. Department of Anesthesia, St. Luke's–Roosevelt Hospital Center, University Hospital of Columbia University, College of Physicians and Surgeons, New York, New York. admir@nysora.com.
2. Hospital Clinic, University of Barcelona, Barcelona, Spain.
3. Department of Anesthesia, St. Luke's–Roosevelt Hospital Center, University Hospital of Columbia University, College of Physicians and Surgeons, New York, New York.