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| Motivators | Categories | Frequency (n) | Percent (%) |
|---|---|---|---|
| Personal benefits | Financial interest | 19 | 7 |
| Health benefits | 87 | 31 | |
| Total | 106 | 38 | |
| Social benefits | Advancing research | 119 | 42 |
| Help society | 56 | 20 | |
| Total | 175 | 62 |
