Fig. 1From: Sex disparities in vitamin D status and the impact on systemic inflammation and survival in rectal cancerSerum 25-hydroxyvitamin D [25(OH) D] levels in women and men according to the season of rectal cancer diagnosis. Mean levels are indicated by box lines, and box upper and lower borders indicate the 25th and 75th percentiles. Minimum and maximum levels are represented by the whiskers. The dashed lines show the mean levels for the entire female and male populationsBack to article page