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| Source | Never | Sometimes | Frequently |
|---|---|---|---|
| Personal hard copies of journals | 4 | 25 | 71 |
| Journal hard copies in libraries | 11 | 52 | 37 |
| Personal subscriptions to internet journals | 19 | 30 | 50 |
| Internet journals accessed through libraries | 10 | 28 | 62 |
| Free internet journals | 9 | 47 | 43 |
| Internet medical literature summaries (UpToDate or similar services) | 3 | 35 | 62 |
