- Analysis of genomic integrity and p53-dependent G1 checkpoint in telomerase-induced extended-life-span human fibroblasts. Vaziri, H., Squire, J.A., Pandita, T.K., Bradley, G., Kuba, R.M., Zhang, H., Gulyas, S., Hill, R.P., Nolan, G.P., Benchimol, S. Mol. Cell. Biol. (1999)