RT Journal Article SR Electronic T1 What Is the RUC? JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A2767 A1 W.D. Donovan YR 2011 UL http://www.ajnr.org/content/early/2011/08/25/ajnr.A2767.abstract AB SUMMARY: We describe a crucial but little-known constituent of the Medicare payment system.