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Development of the Psoriasis Symptoms Scale (PSS) in patients with moderate-to-severe psoriasis: qualitative and quantitative analyses.

Armstrong AW, Edson-Heredia E, Naegeli AN, Burge R, Poon JL, Anatchkova M, Sun L, Zhu B, Wyrwich KW. Development of the Psoriasis Symptoms Scale (PSS) in patients with moderate-to-severe psoriasis: qualitative and quantitative analyses. J Dermatolog Treat. 2020 Aug; 31(5):452-459.

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