UBA1 and Arthritis: Ferrada Ferrada MA MA Sikora Sikora KA KA Luo Luo Y Y Wells Wells KV KV Patel Patel B B Groarke Groarke EM EM Somatic mutations in UBA1 define a distinct subset of relapsing polychondritis patients with VEXAS syndrome Somatic mutations in UBA1 define a distinct subset of relapsing polychondritis patients with VEXAS syndrome Arthritis Rheumatol Arthritis Rheumatol 2021 2021 10.1002/art.41743 10.1002/art.41743 supplied-pmid 33779074?