TY - JOUR A1 - Fredman, L. A1 - Cauley, J.A. A1 - Satterfield, S. A1 - Simonsick, E. A1 - Spencer, S.M. A1 - Ayonayon, H.N. A1 - Harris, T.B. A1 - Group, Health A.B.C.Study T1 - Caregiving, mortality, and mobility decline: The health, aging, and body composition (health ABC) study Y1 - 2008 DO - 10.1001/archinte.168.19.2154 VL - 168 IS - 19 ER -