[(3)H]dThd incorporation

Lifespan is associated with [(3)H]dThd incorporation in Mammalia cells.

“Both the initial rate and the maximum incorporation of [(3)H]dThd increased with the life-span of the species”

Cellsafter UV irradiation

Correlation between deoxyribonucleic acid excision-repair and life-span in a number of mammalian species

Proceedings of the National Academy of Sciences of the United States of America·1 Jun 1974