Bayliss EA, McQuillan DB, Ellis JL, Maciejewski ML, Zeng C, Barton MB, Boyd CM, Fortin M, Ling SM, Tai-Seale M, Ralston JD, Ritchie CS, Zulman DM. Using Electronic Health Record Data to Measure Care Quality for Individuals with Multiple Chronic Medical Conditions. J Am Geriatr Soc. 2016 09; 64(9):1839-44.