1. Vidiik A. The biological aging is our inescapable fate — but can we modify it? Z Gerontol Geriatr 1999; 32: 384–9.
2. The Epic of Gilgamesh. Trans. by Maureen Gallery Kovacs. Standford: Stanford University Press, 1990.
3. Genesis, chapter 6/3. The Holy Bible, Today’s English Version, 2nd ed. American Bible Society, 1992.
4. Bacon R. Cure of old age, and preservation of youth (1267/78). Translated from Latin by Richard Browne. London, 1683.
5. Buffon. De l’homme (1749). Paris: Ed. François Maspero, 1971.