| Share | Phrase |
|---|
| 28.27% | complication [does] arise |
| 19.45% | inherent [typicality] complication |
| 14.55% | design complication |
| 12.00% | additional [importance] complication |
| 10.44% | avoid complication [perform operation] |
| 7.33% | system complication |
| 4.10% | prevent complication [perform operation] |
| 3.82% | cause complication [perform operation] |