Prologue: 2020 Annual Meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA)
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The Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) held its annual meeting in 2020 in an online format due to travel restrictions during the coronavirus disease 2019 (COVID-19; caused by SARS-CoV-2) pandemic. The virtual meetin... ...
