c("population doublings: 32", "cell type: MRC-5 fibroblasts", "treatment: control")
c("population doublings: 32", "cell type: MRC-5 fibroblasts", "treatment: control")
c("population doublings: 32", "cell type: MRC-5 fibroblasts", "treatment: control")
c("population doublings: 36", "cell type: MRC-5 fibroblasts", "treatment: subjected to quiescence using 150 days contact inhibition")
c("population doublings: 36", "cell type: MRC-5 fibroblasts", "treatment: subjected to quiescence using 150 days contact inhibition")
c("population doublings: 36", "cell type: MRC-5 fibroblasts", "treatment: subjected to quiescence using 150 days contact inhibition")