| occur | 0.43 |
| cause | 0.32 |
| reduce blood flow | 0.28 |
| disrupt local area | 0.21 |
| occur in lung | 0.21 |
| occurred in last few da… | 0.16 |
| prevent oxygen | 0.16 |
| caused by fibrous webs | 0.16 |
| occur in brain | 0.16 |
| occur in artery | 0.16 |
| pain | 0.62 |
| disease | 0.39 |
| a heart attack | 0.28 |
| discomfort | 0.28 |
| shortness of breath | 0.24 |
| disruption | 0.16 |
| flooding of the river f… | 0.16 |
| build | 0.16 |
| mucus | 0.16 |
| chest pains | 0.16 |
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| stroke | 0.59 |
| inflammation | 0.37 |
| illness | 0.28 |
| death | 0.21 |
| dysfunction | 0.16 |
| removed | 0.83 |
| identified | 0.52 |
| caused by tumor | 0.42 |
| caused by blood clots | 0.41 |
| treated | 0.33 |
| caused by injury | 0.30 |
| released | 0.30 |
| associated with one or … | 0.30 |
| caused by plaque | 0.25 |
| felt | 0.25 |
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