Authors: Steven P Cohen; Anuj Bhatia; Asokumar Buvanendran; Eric S Schwenk; Ajay D Wasan; Robert W Hurley; Eugene R Viscusi; Samer Narouze; Fred N Davis; Elspeth C Ritchie; Timothy R Lubenow; William M Hooten Journal: Reg Anesth Pain Med Date: 2018-07 Impact factor: 6.288