| Similarity | Rank | |
|---|---|---|
| counterpulsation | 0.846 | 96915 |
| heart-lung | 0.837 | 54681 |
| appendicectomy | 0.834 | 81458 |
| microsurgery | 0.834 | 80012 |
| orthotopic | 0.832 | 83386 |
| empyema | 0.832 | 90036 |
| tracheotomy | 0.829 | 62052 |
| addenbrookes | 0.826 | 85370 |
| non-cardiac | 0.824 | 65674 |
| head-injured | 0.823 | 88328 |
| mouth-to-mouth | 0.823 | 71302 |
| non-operative | 0.820 | 68780 |
| sex-change | 0.819 | 64179 |
| problem-free | 0.818 | 82652 |
| post-operatively | 0.817 | 57698 |
| checkup | 0.817 | 67738 |
| unoperated | 0.812 | 81552 |
| neurosurgical | 0.812 | 57379 |
| electively | 0.812 | 77617 |
| glaucoma | 0.811 | 47352 |
| gastroscopic | 0.808 | 86530 |
| arteriography | 0.808 | 75539 |
| terminally-ill | 0.807 | 89315 |
| strangles | 0.804 | 73899 |
| mammogram | 0.804 | 72103 |