Affiliation: | 1. Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins Hospital, Baltimore, Maryland, U.S.A.;2. Department of Otolaryngology–Head and Neck Surgery, The Johns Hopkins Hospital, Baltimore, Maryland, U.S.A.;3. Department of Surgery, The Johns Hopkins Hospital, Baltimore, Maryland, U.S.A.;4. Legal Department, The Johns Hopkins Hospital, Baltimore, Maryland, U.S.A. |