| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| when is trisomy 21 detected | 1.43 | 1 | 7500 | 12 |
| can trisomy 21 be detected on ultrasound | 0.68 | 0.9 | 510 | 3 |
| trisomy 21 detected | 1.41 | 0.1 | 6958 | 89 |
| how is trisomy 21 diagnosed | 1.56 | 0.7 | 9572 | 35 |
| what is the trisomy 21 | 1.29 | 0.1 | 3713 | 96 |
| what is complete trisomy 21 | 0.55 | 0.1 | 9359 | 37 |
| testing for trisomy 21 | 1.55 | 1 | 5861 | 85 |
| trisomy 21 test results | 1.54 | 0.2 | 7066 | 22 |
| trisomy 21 blood test | 1.82 | 0.1 | 1766 | 34 |
| how trisomy 21 occurs | 1.01 | 0.8 | 6837 | 49 |
| pictures of trisomy 21 | 1.66 | 0.9 | 2321 | 47 |
| trisomy in chromosome 21 | 1.04 | 0.2 | 6779 | 53 |
| tests for trisomy 21 | 1.3 | 0.6 | 3185 | 19 |
| true of trisomy 21 | 0.1 | 0.8 | 2867 | 50 |
| trisomy 21 genetic testing | 0.58 | 0.8 | 2916 | 48 |
| how does trisomy 21 happen | 0.22 | 1 | 6794 | 31 |
| history of trisomy 21 | 1.18 | 0.6 | 8777 | 86 |
| trisomy 21 results in which syndrome | 1.86 | 0.8 | 1966 | 78 |
| what does trisomy 21 refer to | 0.53 | 0.5 | 5368 | 50 |
| 21-trisomy | 1.4 | 0.6 | 8448 | 28 |
