| bone graft | 1.84 | There were bone grafts. | ||
| vein graft | 0.79 | In response, cells lining the vein grafts grow and form scar tissue. | ||
| bypass graft | 0.33 | The figures did not account for the types of bypass grafts the patients received. |
| bone graft | 1.84 | There were bone grafts. | ||
| vein graft | 0.79 | In response, cells lining the vein grafts grow and form scar tissue. | ||
| bypass graft | 0.33 | The figures did not account for the types of bypass grafts the patients received. |