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| Cases (lesions) (n = 55) | Controls (sun-exposed) (n = 41) | P-value | |
| Polymorphism | 0.10 | ||
| Pro/Pro | 4 (7%) | 5 (12%) | |
| Pro/Arg | 16 (29%) | 19 (46%) | |
| Arg/Arg | 35 (64%) | 17 (41%) | |
| Any Proline (Pro/Pro or Pro/Arg) | 20 (36%) | 24 (59%) | 0.03 |
