TY - JOUR A1 - Kendig, Hal A1 - Dykstra, Pearl A. A1 - van Gaalen, Ruben I. A1 - Melkas, Tuula 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 -