TY - JOUR A1 - Smith, A.K. A1 - Walter, L.C. A1 - Miao, Y. A1 - Boscardin, W.J. A1 - Covinsky, K.E. T1 - Disability during the last two years of life Y1 - 2013 DO - 10.1001/jamainternmed.2013.8738 JF - JAMA Internal Medicine VL - 173 IS - 16 ER -