1. Institute of Anesthesiology and Head Medical, Section Anesthesiology, Intensive Care Medicine and OR-Management, University Hospital Zurich, Zurich, Switzerland. donat.spahn@usz.ch.
2. Department of Anesthesiology and Critical Care and Hyperbaric Medicine and Institute for Patient Blood Management and Bloodless Medicine and Surgery, Englewood Hospital and Medical Center, Englewood, New Jersey.
3. Medical Society for Blood Management, Laxenburg, Austria, and Center for Population Health Research, Curtin University, Western Australia.
4. Department of Anesthesiology, Columbia University College of Physicians and Surgeons, New York, New York.