TY - JOUR A1 - Kirkwood, T.B. T1 - The origins of human aging Y1 - 1997 DO - 10.1098/rstb.1997.0160 JF - Philosophical Transactions of the Royal Society of London-Series B: Biological Sciences VL - 352 IS - 1363 SP - 1765 EP - -1772 ER -