1Kirkwood TB, Feder M, Finch CE, et al. What accounts for the wide variation in life span of genetically identical organisms reared in a constant environment? Mech Ageing Dev, 2005, 126: 439-443.
2Parks RJ, Fares E, MacDonald JK, et al. A procedure for creating a frailty index based on deficit accumulation in aging mice. J Gerontol A Biol Sci Med Sci, 2011, 21: [Epub ahead of print] http:// biomedgerontology, oxfordjournals, org/content/ early/2011/10/20/gerona, glr193, short.
3Rockwood K, Mitnitski A. Frailty defined by deficit accumulation and geriatric medicine defined by frailty. Clin Geriatr Med, 2011,27:17-26.
4Gavrilov LA, Gavrilova NS. The reliability engineering approach to the problem of biological aging. AnnN YAcadSci, 2004,1019:509-512.
5Kulminski AM, Arbeev KG, Christensen K, et al. Do gender, disability, and morbidity affect aging rate in the LLFS? Application of indices of cumulative deficits. Mech Ageing Dev, 2011,132:195-201.