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Figure 1 Plot of left ventricular ejection fraction (LVEF) against left ventricular internal diameter at end diastole (LVIDd) in all cyclists (solid circles = 1995; open circles = 1998). The solid vertical bar represents the normality threshold (60 mm) for LVIDd, and the solid horizontal bar represents the normality threshold (52%) for LVEF. Numbers in italics in front of each axis value are cumulative numbers of cyclists with a value below the corresponding axis value.
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