take a series of x-rays | 0.53 |
use small amounts of ra… | 0.37 |
look at anatomical stru… | 0.25 |
use computer | 0.25 |
use ionizing radiation | 0.21 |
increase cancer risk | 0.16 |
x-ray procedures | 0.30 |
test | 0.25 |
performed | 0.72 |
performed on abdomen | 0.35 |
performed in 2007 | 0.34 |
done at same time | 0.33 |
performed in the united… | 0.30 |
ordered | 0.30 |
completed | 0.29 |
used to measure the tum… | 0.25 |
estimated to produce no… | 0.25 |