[9]　海弗里克发现，培养的人类干细胞：‘The Disparity Between Human Cell Senescence In Vitro and Lifelong Replication In Vivo', Nature Biotechnology, 1 July 2002.
[10]　犹他大学遗传学家的一项研究发现：University of Utah Genetic Science Learning Center report, ‘Are Telomeres the Key to Aging and Cancer??
[11]　如果衰老完全是因为端粒：‘You May Have More Control over Aging than You Think . . .', Stat, 3 Jan. 2017.