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Pemphigus disease activity measurements: pemphigus disease area index, autoimmune bullous skin disorder intensity score, and pemphigus vulgaris activity score. Self-assessment Pemphigus Vulgaris Activity Score (SA-PVAS): A new tool for patients to self-assess their disease severity Pemphigus vulgaris (PV) is an autoimmune blistering mucocutaneous disease with an unpredictable course.1,2 For assessing the severity of PV, several scoring systems have been developed such as Pemphigus Disease Area Index (PDAI) and Pemphigus Vulgaris Activity Score (PVAS).3 We conducted this study to evaluate the translated simplified version of the PVAS called Self-Assessment PVAS (SA-PVAS) in comparison with the PDAI. [Extracted from the article]