TY - JOUR T1 - Development, Validation, and Performance of a New Physical Functioning–Weighted Multimorbidity Index for Use in Administrative Data JF - Journal of General Internal Medicine Y1 - 2021 A1 - Melissa Y Wei A1 - Jamie E Luster A1 - Ratz, David A1 - Kenneth J Mukamal A1 - Kenneth M. Langa KW - Medicaid KW - Medicare KW - multimorbidity index KW - physical functioning VL - 36 ER -