||Mammalian tissue culture cell
||Hahn AT, Jones JT, Meyer T. Quantitative analysis of cell cycle phase durations and PC12 differentiation using fluorescent biosensors. Cell Cycle. 2009 Apr 1 8(7):1044-52. p.1047 fig.2BPubMed ID19270522
||"Live-cell fluorescent biosensors and time-lapse microscopy allows the collection of temporal information about real time cell cycle progression and arrest." Value estimated visually from figure 2B
||"Though the average duration of a completed G1 phase does not differ significantly among the three cell types, when comparing the time spent in G1 phase for single NIH3T3, NCI-H292 and HeLa cells, [investigators] found a marked bimodal behavior that was unique to NIH3T3 fibroblast cells. Figure 2B shows histograms of the time individual cells of the three cell types spent in G1 phase."