| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| how long between ppd tests | 0.12 | 0.7 | 2258 | 41 |
| how long to wait between ppd tests | 0.68 | 0.4 | 6278 | 59 |
| how long are ppd tests good for | 1.08 | 0.9 | 5741 | 49 |
| how long are ppd tests valid for | 0.37 | 0.8 | 7862 | 26 |
| how long do you have to wait between ppd test | 0.22 | 0.6 | 7931 | 17 |
| how long does a ppd test last | 0.09 | 0.6 | 5744 | 95 |
| how many days to read ppd test | 0.73 | 0.6 | 6831 | 20 |
| ppd test good for how long | 1.85 | 0.5 | 5248 | 79 |
| how soon can ppd test be repeated | 1.37 | 0.7 | 3090 | 5 |
| how long to read a ppd | 1.24 | 0.1 | 3221 | 70 |
| how long to read ppd results | 1.77 | 0.6 | 6535 | 50 |
| ppd test how often | 1.18 | 0.8 | 8242 | 46 |
| two step ppd time between tests | 0.26 | 0.1 | 7120 | 85 |
| how soon can you repeat ppd testing | 0.68 | 0.6 | 6458 | 13 |
| when to read a ppd test | 0.93 | 1 | 6429 | 52 |
| ppd test reading time | 0.43 | 0.8 | 8563 | 67 |
| when to check ppd test | 0.61 | 0.4 | 2772 | 8 |
