From the Division of Rheumatology, Rush University Medical Center, Chicago, IL.
Funding statement: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Conflict of interest: None declared.
Correspondence: Isabel Castrejon, MD, PhD, Division of Rheumatology, Rush University Medical Center, 1611 West Harrison Street, Chicago, IL 60612. E-mail: email@example.com.
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