1. Department of Anesthesia; Critical Care Medicine & Pain Medicine; Massachusetts General Hospital; Harvard Medical School; Boston MA USA
2. Departments of Anesthesiology; Critical Care Medicine; The Johns Hopkins University; Baltimore MD USA
3. Department of Anesthesia; Massachusetts Eye and Ear Infirmary; Boston MA USA
4. Stanford Anesthesia Informatics and Media Lab; Department of Anesthesia; Stanford University; Palo Alto CA USA
5. Anesthesia Associates of Ann Arbor; Wayne State University; Detroit MI USA