1. Animal cell cultures as a model system for the study of aging;Cristofalo,1972
2. Current theories of biological aging;Hayflick,1975
3. Repetition of molecular-genetic information as a possible factor in evolutionary changes of life span;Medvedev;Exp. Gerontol.,1972
4. Clonal selection, attenuation, and differentiation in an in vitro of hyperplasia;Martin;Am. J. Pathol.,1974
5. Cell cycle stage-specific transcription of histone genes;Stein;Biochem. Biophys. Res. Commun.,1975