Cawthon RM, Smith KR, O'Brien E, Sivatchenko A, Kerber RA (February 2003). "Association between telomere length in blood and mortality in people aged 60 years or older". Lancet. 361 (9355): 393–5. doi:10.1016/S0140-6736(03)12384-7. PMID12573379. S2CID38437955.
Cawthon RM, Smith KR, O'Brien E, Sivatchenko A, Kerber RA (February 2003). "Association between telomere length in blood and mortality in people aged 60 years or older". Lancet. 361 (9355): 393–5. doi:10.1016/S0140-6736(03)12384-7. PMID12573379. S2CID38437955.
Cawthon RM, Smith KR, O'Brien E, Sivatchenko A, Kerber RA (February 2003). "Association between telomere length in blood and mortality in people aged 60 years or older". Lancet. 361 (9355): 393–5. doi:10.1016/S0140-6736(03)12384-7. PMID12573379. S2CID38437955.
Golitsin, Yuri N.; Krylov, Mikhail C. C. (2010). Cell division: theory, variants, and degradation. New York: Nova Science Publishers. p. 137. ISBN978-1-61122-593-8. OCLC669515286.