TY - JOUR A1 - Manton, K.G. A1 - Stallard, E. T1 - Longevity in the United States: Age and sex-specific evidence on life span limits from mortality patterns 1960-1990 Y1 - 1996 JF - Journal of Gerontology: Biological Sciences VL - 51A IS - 5 SP - B362 EP - -375 ER -