1. The serial cultivation of human diploid cell strains;Hayflick;Exp. Cell Res.,1961
2. Replicative life span of cultivated human cells. Effects of donor's age, tissue and genotype;Martin;Lab. Invest.,1970
3. The limited in vitro lifetime of human diploid cell strains;Hayflick;Exp. Cell Res.,1965
4. The limited growth span of cell strains isolated from the chick embryo;Hay;Exp. Gerontol.,1967
5. Effects of Rous sarcoma virus in vitro on cells of human and bovine origin;Stenkvist;Acta Universitatis Upsaliensis [Uppsala Dissertations in Medicine],1966