Fig. 4From: The common incidence-age multistep model of neurodegenerative diseases revisited: wider general age range of incidence corresponds to fewer disease stepsThe number of steps n versus the range of the age of incidence of each ND. R2 is the regression coefficient of the fit to a regression. A All data. B Male. C Female. Bar plot of the range of the age of incidence divided by the number of steps n for each ND. B All data. D Male. F FemaleBack to article page