1. Abbott, M. H., Abbey, H., Bolling, D. R., & Murphy, E. A. (1974). The familial component in longevity. A study of offspring of nonagenarians II. Preliminary analysis of the completed study. Johns Hopkins Medical Journal, 134(1), 1–16.
2. Carmelli, D., & Andersen, S. (1981). A longevity study of twins in the mormon genealogy. Progress in Clinical and Biological Research, 69(Pt C), 187–200.
3. Cohen, B. H. (1964). family pattern of mortality and life-span. The Quarterly Review of Biology, 39, 130–181.
4. Curtsinger, J. W., Fukui, H. H., Khazaeli, A. A., Kirscher, A., Pletcher, S. D., Promislow, D. E., & Tatar, M. (1995). Genetic variation and aging. Annual Review of Genetics, 29, 553–575.
5. Finch, C. E., & Tanzi, R. E. (1997). Genetics of aging. Science, 278(5337), 407–411.