Figure 1.

Example of a growth curve of the shoe size of a girl. The start and end of the peak increase of the shoe size are shown as dotted lines. The age at peak increase is shown as the fat dotted line. Age is expressed in years, shoe size in European standards.

Busscher et al. Scoliosis 2011 6:1   doi:10.1186/1748-7161-6-1
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