Figure 12.

The glandular fraction of coronal bCT slices is shown versus the relative z position for women with bra cup sizes (a) A, (b) B, (c) C, and (d) D. The direction of z position relative to a bCT volume data set is illustrated in A, where 0 is posterior and 1 is anterior. The dashed line is the mean GF_coronal and the solid line is the median GF_coronal. The darker shade covers the range of 25th percentile below and 75th percentile above the median. The lighter shade covers the range of standard error above and below the mean.