Shiroh Isono1, Matthias Eikermann, Takeo Odaka. 1. From the Department of Anesthesiology, Graduate School of Medicine, Chiba University, Chiba, Japan (S.I.); Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts (M.E.); and Department of Endoscopic Diagnostics and Therapeutics, Chiba University Hospital, Chiba, Japan (T.O.).