Physician Global Assessment (PGA) and Psoriasis Area and Severity Index (PASI): why do both? A systematic analysis of randomized controlled trials of biologic agents for moderate to severe plaque psoriasis.
Robinson, Amanda, Marisa Kardos, and Alexandra B Kimball. 2012. “Physician Global Assessment (PGA) and Psoriasis Area and Severity Index (PASI): Why Do Both? A Systematic Analysis of Randomized Controlled Trials of Biologic Agents for Moderate to Severe Plaque Psoriasis.”. Journal of the American Academy of Dermatology 66 (3): 369-75.