| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| structure of codeine morphine and diamorphine | 1.53 | 0.7 | 8781 | 46 | 45 |
| structure | 0.32 | 0.9 | 3527 | 60 | 9 |
| of | 0.73 | 0.5 | 7155 | 50 | 2 |
| codeine | 1.21 | 1 | 1883 | 10 | 7 |
| morphine | 1.01 | 0.6 | 4756 | 84 | 8 |
| and | 1.74 | 0.9 | 8746 | 16 | 3 |
| diamorphine | 1.64 | 0.1 | 6716 | 71 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| structure of codeine morphine and diamorphine | 1.38 | 0.1 | 6792 | 17 |
