Figure 4

The ellipses computed from the limits of the confidence interval (CI 95%) for the three independent Ki67 counts (n = 30). Observer ellipses are almost superimposed: Ki67-Count-1 limit is the blue ellipse (centre x = 29%, y = 29%; major axis = 76%; minor axis = 6%; tilt = 45.36°); Ki67-Count-2 limit is the orange ellipse (centre x = 27%, y = 29%; major axis = 68%; minor axis = 8%; tilt = 46.38°); Ki67-Count-3 limit is the green ellipse (centre x = 29%, y = 29%; major axis = 70%; minor axis = 6%; tilt = 45.37°).