| hla b27 | 1.52 | 0.5 | 1958 | 7 | 76 |
| hla b27 positive | 1.2 | 0.1 | 4590 | 16 | 61 |
| hla b27 testing | 0.34 | 1 | 4521 | 15 | 85 |
| hla b27 antigen | 0.79 | 0.3 | 3727 | 15 | 49 |
| hla b27 gene | 1.68 | 0.8 | 1380 | 12 | 66 |
| hla b27 disease association | 1.43 | 0.3 | 7467 | 27 | 49 |
| hla b27 lupus | 0.21 | 0.7 | 5598 | 13 | 69 |
| hla b27 labcorp | 0.86 | 0.3 | 6665 | 15 | 51 |
| hla b27+ | 1.97 | 0.5 | 2980 | 8 | 83 |
| hla b27 blood test | 0.46 | 0.1 | 4009 | 18 | 17 |
| hla b27 negative | 0.06 | 0.6 | 5235 | 16 | 65 |
| hla b27 icd 10 | 0.12 | 1 | 6102 | 14 | 36 |
| hla b27 ankylosing spondylitis | 1.32 | 0.1 | 3053 | 30 | 67 |
| hla b27 positive icd 10 | 1.83 | 0.9 | 9765 | 23 | 85 |
| hla b27 positive meaning | 1.02 | 0.2 | 2353 | 24 | 97 |
| hla b27 diseases | 1.48 | 0.8 | 5982 | 16 | 56 |
| hla b27 pcr | 1.73 | 0.3 | 2680 | 11 | 20 |
| hla b27 negative means | 0.98 | 0.7 | 201 | 22 | 100 |
| hla b27 biomnis | 1.19 | 1 | 8668 | 15 | 46 |
| hla b27 positive in women | 0.49 | 0.4 | 6497 | 25 | 18 |
| hla b27 positivo | 1.8 | 0.6 | 3620 | 16 | 6 |
| hla b27 positive diseases | 0.94 | 0.3 | 7156 | 25 | 65 |
| hla b27 negativo | 1.78 | 0.5 | 2043 | 16 | 96 |
