Sizes of individual 1- (I)and 4-week (J) YFP+clones at different radii in (G)and (H). Each dot represents 1 clone. Dashed line, point at which clone sizes become statistically indistinguishable from those inConfettisamples, Kolmogorov-Smirnov tests. For (D), (E), and (G)–(J),n≥ 3 mice per time point (total numbers of clones and mice analyzed are given inTableS1).