[1
]Department of Anesthesiology; Memorial Hermann Memorial City Medical Center; Houston
Texas U.S.A
[2
]Research Department; Hermann Drive Surgical Hospital; Houston Texas U.S.A
[3
]Department of Anesthesiology; Shoals Medical Trials, Inc; Sheffield Alabama U.S.A
[4
]Lotus Clinical Research; Pasadena California U.S.A
[5
]Medical and Clinical Affairs; AcelRx Pharmaceuticals; Redwood City California U.S.A