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Lesions characteristics according to the protocol applied.
| Lesions characteristics | Photodynamic therapy using the conventional protocol (N=285 AKa), n (%) | Photodynamic therapy using the Phosistos protocol (N=285 AK), n (%) | ||
| Grade of lesions | ||||
| Grade I | 130 (45.6) | 128 (44.9) | ||
| Grade II | 155 (54.4) | 157 (55.1) | ||
aAK: actinic keratosis.
