| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| polio iron lung survivors | 0.94 | 0.3 | 5061 | 67 | 25 |
| polio | 0.18 | 0.3 | 4721 | 54 | 5 |
| iron | 0.31 | 0.2 | 9004 | 20 | 4 |
| lung | 0.38 | 0.5 | 5166 | 21 | 4 |
| survivors | 1.51 | 0.4 | 9888 | 2 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| polio iron lung survivors | 1.59 | 0.7 | 7922 | 67 |
| polio survivor iron lung | 0.93 | 0.1 | 2682 | 89 |
| iron lung and polio victims | 1.91 | 0.4 | 4801 | 85 |
| polio and the iron lung | 0.44 | 0.5 | 531 | 12 |
| the iron lung polio | 1.92 | 1 | 5372 | 40 |
| iron lung for polio patients | 1.25 | 0.4 | 5825 | 21 |
| polio disease iron lung | 0.36 | 0.2 | 9928 | 4 |
| man with polio in iron lung | 1.76 | 0.7 | 2027 | 34 |
| polio ward iron lung | 1.71 | 0.1 | 9572 | 66 |
| polio treatment iron lung | 0.02 | 0.9 | 2361 | 38 |
| paul polio iron lung | 1.77 | 1 | 1062 | 11 |
| polio and iron lung treatment | 0.52 | 0.9 | 4739 | 2 |
| polio ward iron lung image | 1 | 0.4 | 5991 | 13 |
| iron lung polio ward photo | 0.01 | 0.6 | 8265 | 28 |
| how does iron lung work for polio | 0.76 | 1 | 8982 | 64 |
| iron lungs for polio machine | 1.73 | 0.5 | 7290 | 82 |
| how did the iron lung help polio victims | 1.32 | 0.7 | 4043 | 25 |
| iron lung for polio victims | 1.43 | 0.7 | 4001 | 19 |
