Hoge C, Bowling CB, Lim SS, Drenkard C, et al. Association of Poverty Income Ratio with Physical Functioning in a Cohort of
Patients with Systemic Lupus Erythematosus. J Rheumatol 2020 Mar 1. pii: jrheum.190991. doi: 10.3899/jrheum.190991.
PMID: 32115428