Mi Ryoung SEO et al. 2020. Outcomes and Risk Factors of Systolic Pulmonary Artery Pressure Progression in Patients with Systemic Rheumatic Diseases: Follow-up Results from a Korean Registry. Archives of Rheumatology. 35, 4 (Dec. 2020), 558–567. DOI:https://doi.org/10.46497/ArchRheumatol.2020.7812.