Daniel Croxford1, Mark C Kendall2. 1. Department of Anesthesiology, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, 593 Eddy Street, Providence, RI, 02903, USA. 2. Department of Anesthesiology, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, 593 Eddy Street, Providence, RI, 02903, USA. mark.kendall@lifespan.org.