Figure 4.

a Scatter plot of the standard deviations against the means for all methods in all the 201 5-year-olds.b: Scatter plot of the standard deviations against the means for all methods in all the 231 10-/11-year-olds.

Boye et al. BMC Oral Health 2013 13:6   doi:10.1186/1472-6831-13-6
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