TY - JOUR A1 - Tennstedt, S.L. A1 - Crawford, S.L. A1 - McKinley, J.B. T1 - Is family care on the decline? A longitudinal investigation of the substitution of formal long-term care services for informal care Y1 - 1992 JF - The Milbank Quarterly VL - 71 IS - 4 SP - 601 EP - -624 ER -