Thornblade LW, Varghese TK, Shi X , Johnson EK, Bastawrous A, Billingham RP, Thirlby R, Fichera A, and Flum DR (2017). Diseases of Colon and Rectum Long term effects of repeated injections of local anesthetic with or without corticosteroid for lumbar spinal stenosis: a randomized trial Friedly JL, Comstock BA, Turner JA, Heagerty PJ, Deyo RA, Bauer Z, Avins AL, Nedeljkovic SS, Nerenz DR, Shi X , Annaswamy T, Standaert CJ, Smuck M, Kennedy DJ, Akuthota V, Sibell D, Wasan AD, Diehn F, Suri P, Rundell SD, Kessler L, Chen AS, and Jarvik JG. (2017). Archives of Physical Medicine and Rehabilitation