TY - JOUR A1 - Martelin, T. A1 - Koskinen, S. A1 - Valkonen, T. T1 - Sociodemographic mortality differences among the oldest old in Finland Y1 - 1998 DO - 10.1093/geronb/53B.2.S83 JF - The Journals of Gerontology: Series B VL - 53B IS - 2 SP - S83 EP - -S90 ER -