%0 Letter %T Quality of patient-reported outcome measures for grading acne scars and dark marks: a COSMIN review. %A Urbonas R %A Shields A %A Ly S %A Choe J %A Heinrich C %A Keri J %A Barbieri JS %J Arch Dermatol Res %V 316 %N 2 %D 2024 Jan 10 %M 38198016 %F 3.033 %R 10.1007/s00403-024-02815-6