Olshansky, S. J.; Hayflick, L; Carnes, B. A. (1 August 2002). «Position statement on human aging». The Journals of Gerontology Series A: Biological Sciences and Medical Sciences57 (8): B292–7. doi:10.1093/gerona/57.8.B292. PMID12145354.
Olshansky, S. J.; Hayflick, L; Carnes, B. A. (1 August 2002). «Position statement on human aging». The Journals of Gerontology Series A: Biological Sciences and Medical Sciences57 (8): B292–7. doi:10.1093/gerona/57.8.B292. PMID12145354.