| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is the gray top tube used for | 0.44 | 0.4 | 5382 | 21 |
| the gray top tube is used for | 0.22 | 0.2 | 3254 | 6 |
| gray top tube is used for what test | 1.48 | 0.1 | 2705 | 61 |
| grey top tube used for | 1.58 | 0.6 | 2898 | 61 |
| the yellow top tube is used for | 1 | 0.4 | 6989 | 96 |
| green top tube used for | 1.23 | 1 | 7276 | 77 |
| grey top tube tests | 0.42 | 0.7 | 9950 | 69 |
| grey top tubes for blood | 1.22 | 0.8 | 5625 | 83 |
| gray top test tubes | 0.22 | 0.4 | 682 | 9 |
| gray top tube lab test | 0.28 | 0.2 | 7828 | 56 |
| gray top tube additive | 1.96 | 0.4 | 8940 | 26 |
| green top tube used for what test | 1.22 | 0.1 | 2825 | 20 |
| gray top tube blood test | 0.47 | 0.9 | 877 | 85 |
| gray top lab tube | 0.35 | 1 | 1615 | 60 |
| grey top tube additive | 0.97 | 0.7 | 1300 | 36 |
| gray top blood tube | 0.56 | 0.1 | 9244 | 34 |
| grey top tube blood test | 0.82 | 1 | 9820 | 46 |
| grey top tubes for blood collection | 0.2 | 0.9 | 5613 | 63 |
| grey tube for blood test | 0.59 | 0.6 | 3141 | 41 |
| grey top blood tube | 1.85 | 1 | 7948 | 94 |
| grey top lab tubes | 1.03 | 0.2 | 9161 | 72 |
