Table S4.
Response rate
| Row | Classification | N |
| 1 | Solicited | 1,529 |
| 2 | Returned mail | 47 |
| 3 | Refused | 1 |
| 4 | Not physician | 8 |
| 5 | Physician response | 301 |
| 6 | Not PCP | 68 |
| 7 | Complete/near complete | 233 |
| 8 | Response: (5)/(1-2-4) | 0.20 |
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