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Validation of the EPC classification in our study cohort. A maximum achievable score of 4 points corresponds to severe EPC and the minimum of one point indicates mild EPC. Scores of 2 to 3 points are considered intermediate
| I | II | III | IV |
|---|---|---|---|
| EPC grading in our cohort | |||
| 23 | 40 | 0 | 8 |
