Figure 1.

Boxplots representing the distribution of serum 25(OH)D concentration according to the number of the risk allele of rs2282679 (minor allele, C) in the GC locus. Each box represents the IQR range of values, with the bold line showing the median value. The vertical lines show maximum and minimum values that fall within 1.5 box lengths, the open circles show extreme values >1.5 box plot lengths.

Yoshida et al. Arthritis Research & Therapy 2014 16:R75   doi:10.1186/ar4516
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