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Fig. 7 | Cell & Bioscience

Fig. 7

From: The common incidence-age multistep model of neurodegenerative diseases revisited: wider general age range of incidence corresponds to fewer disease steps

Fig. 7

Extended genealogy tree of the NDs based on incidence-age epidemiological data. A For all data. B Split by sex, male m and female f. The ordinate, or the height of the tree, shows the number of steps of the NDs, with the number of common steps represented by the height of the trunk, and the total number of steps for each ND equal to the number of the abscissa unit segments to the end of the branch of the specific ND. The abscissa or the width of the trunk at the point from each the disease-specific steps for the NDs brunch out, shows the average number of years required for the trigger of one step

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