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