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Figure 2 Plot of left ventricular internal diameter at end diastole (LVIDd) against maximal wall thickness (WT) in all cyclists. The solid horizontal bar represents the LVIDd threshold for dilated left ventricle (LV) (55 mm), and the solid vertical bar represents the normality threshold for maximal WT (13 mm). Numbers in italics in front of the X axis values are cumulative numbers of cyclists with a value below the corresponding axis value.