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. 2016 Feb 2;16:24. doi: 10.1186/s12887-016-0559-0

Fig. 1.

Fig. 1

Scatter plot of screening-TSH level 17–30 mIU/L and age of sample collection. Red triangles represent true positive subjects and blue circles represent false positive subjects whose screening TSH level was 17–30 mIU/L. Contours represent estimate of probability of CH for any given screening-TSH/age of sample collection pair