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Excluded studies list with the related reason
| Excluded study with reason | Reason for exclusion |
|---|---|
| Kopasker et al 9 | Theoretical/methodological study (discrete experiment) |
| Longo and Serra‐Guillén 18 | Qualitative study (questionnaire‐based), without sufficiently detailed information on treatment |
| Salido‐Vallejo et al 7 | Qualitative study (focus group) |
| Philipp‐Dormston et al 11 | Indistinct PROs for single topical drug |
