Ramirez J, Azuaga-Pinango AB, Frade-Sosa B, Gumucio-Sanguino R, et al. Proliferative synovitis, an ultrasound pattern associated with ACPA-positive
patients and erosive disease in rheumatoid arthritis. Clin Exp Rheumatol 2021 Jun 8. pii: 16966.
PMID: 34128799