TY - JOUR A1 - Kendig, H. A1 - Dykstra, P.A. A1 - van Gaalen, R.I. A1 - Melkas, T. T1 - Health of aging parents and childless individuals Y1 - 2007 DO - 10.1177/0192513X07303896 JF - Journal of Family Issues VL - 28 IS - 11 SP - 1457 EP - -1486 ER -