Authors: Terese T Horlocker; Denise J Wedel; John C Rowlingson; F Kayser Enneking; Sandra L Kopp; Honorio T Benzon; David L Brown; John A Heit; Michael F Mulroy; Richard W Rosenquist; Michael Tryba; Chun-Su Yuan Journal: Reg Anesth Pain Med Date: 2010 Jan-Feb Impact factor: 6.288