TY - JOUR A1 - Christensen, K. A1 - McGue, M. A1 - Petersen, I. A1 - Jeune, B. A1 - Vaupel, J.W. T1 - Exceptional longevity does not result in excessive levels of disability Y1 - 2008 DO - 10.1073/pnas.0804931105 JF - PNAS - Proceedings of the National Academy of Sciences VL - 105 IS - 36 SP - 13274 EP - -13279 ER -