TY - BOOK A1 - Thatcher, A.R. A1 - Kannisto, V. A1 - Vaupel, J.W. T1 - The Force of Mortality at Ages 80 and 120 Y1 - 1998 CY - Denmark PB - Odense University Press. T3 - Odense Monographs on Population Aging 5 ER -