AU - Friedly, Janna AU - Chan, Leighton AU - Deyo, Richard TI - Geographic Variation in Epidural Steroid Injection Use in Medicare Patients PT - JOUR DP - 2008 TA - The Journal of Bone & Joint Surgery PG - 1730-1737 VI - 90 IP - 8 AID - 10.2106/JBJS.G.00858 [doi] 4100 - http://dx.doi.org/10.2106/JBJS.G.00858 SO - The Journal of Bone & Joint Surgery August 1, 2008 90(8):1730