略語大辞典 [Med] 25 PASI psoriasis area and severity index 乾癬面積と重度指標. 治療成績の評価指標.psoriasis area and severity index; a measure of outcome of the investigators' assessments of erythema, thickness, and scaling; [Med:L:Imm]. 丸善「略語大辞典」JLogosID : 11854844