Adabiyotlar: 1. Steve Horvath. DNA methylation age of human tissues and cell types (англ.) // BioMed Central (англ.)рус.. — 2013-12-10. — Vol. 14. — P. 3156. — ISSN 1474-760X. — doi:10.1186/gb-2013-14-10-r115.
2. ↑ Steve Horvath. Erratum to: DNA methylation age of human tissues and cell types (англ.) // BioMed Central (англ.)рус.. — 2015-05-13. — Vol. 16. — P. 96. — ISSN 1465-6906. — doi:10.1186/s13059-015-0649-6.
3. ↑ Scientist uncovers internal clock able to measure age of most human tissues; Women's breast tissue ages faster than rest of body (англ.), ScienceDaily. Дата обращения 30 ноября 2017.
4. ↑ Carola Ingrid Weidner, Qiong Lin, Carmen Maike Koch, Lewin Eisele, Fabian Beier. Aging of blood can be tracked by DNA methylation changes at just three CpG sites (англ.) // BioMed Central (англ.)рус.. — 2014-02-03. — Vol. 15. — P. R24. — ISSN 1474-760X. — doi:10.1186/gb-2014-15-2-r24.
5. ↑ Ines Florath, Katja Butterbach, Heiko Müller, Melanie Bewerunge-Hudler, Hermann Brenner. Cross-sectional and longitudinal changes in DNA methylation with age: an epigenome-wide analysis revealing over 60 novel age-associated CpG sites // Human Molecular Genetics (англ.)рус.. — Oxford University Press, 2014-03-01. — Т. 23, вып. 5. — С. 1186—1201. — ISSN 0964-6906. — doi:10.1093/hmg/ddt531.