| rheumatoid arthritis weakened immune system | 0.24 | 0.1 | 2853 | 43 | 54 |
| rheumatoid arthritis and immune system | 1.92 | 0.6 | 8224 | 38 | 15 |
| rheumatoid arthritis immune system disorder | 1.59 | 0.5 | 5336 | 43 | 6 |
| rheumatoid arthritis immune compromised | 0.63 | 0.6 | 7685 | 39 | 96 |
| rheumatoid arthritis immune disorder | 1.16 | 0.4 | 9483 | 36 | 9 |
| rheumatoid arthritis immune response | 0.47 | 0.2 | 9726 | 36 | 91 |
| arthritis and the immune system | 0.92 | 0.9 | 3282 | 31 | 86 |
| auto immune system rheumatoid arthritis | 1.12 | 0.1 | 5229 | 39 | 72 |
| arthritis caused by immune system | 1.8 | 0.2 | 8640 | 33 | 68 |
| is rheumatoid arthritis an immune disease | 1.68 | 0.8 | 2992 | 41 | 32 |
| autoimmune disease and rheumatoid arthritis | 0.91 | 0.9 | 811 | 43 | 63 |
| is rheumatoid arthritis an immunodeficiency | 1.78 | 0.1 | 9704 | 43 | 100 |
| rheumatoid arthritis and weakness | 0.7 | 0.2 | 350 | 33 | 93 |
| is arthritis an immune disease | 1.28 | 0.6 | 9364 | 30 | 54 |
| does ra weaken your immune system | 0.79 | 0.5 | 4566 | 33 | 79 |
| rheumatic and immune diseases | 0.77 | 0.1 | 9135 | 29 | 86 |
