| Similarity | Rank | |
|---|---|---|
| occurence | 0.878 | 71728 |
| occurrence | 0.851 | 8881 |
| occuring | 0.792 | 45089 |
| occurrences | 0.780 | 19018 |
| occured | 0.714 | 29550 |
| occurring | 0.690 | 6651 |
| occurs | 0.676 | 3023 |
| occur | 0.675 | 2067 |
| causes | 0.663 | 1746 |
| cause | 0.658 | 570 |
| incidences | 0.651 | 38601 |
| side-effect | 0.634 | 45586 |
| happens | 0.629 | 1364 |
| outbreaks | 0.615 | 18613 |
| recurrences | 0.614 | 68292 |
| flare-up | 0.614 | 73470 |
| reoccur | 0.613 | 94397 |
| complication | 0.612 | 17641 |
| itis | 0.607 | 93271 |
| symptom | 0.605 | 10426 |
| incidence | 0.601 | 9600 |
| ailment | 0.599 | 18379 |
| caused | 0.599 | 1375 |
| reoccurring | 0.596 | 50393 |
| happen | 0.595 | 904 |