Health Equity Implications of Missing Data Among Youths With <scp>Childhood‐Onset</scp> Systemic Lupus Erythematosus: A <scp>Proof‐of‐Concept</scp> Study in the Childhood Arthritis and Rheumatology Research Alliance RegistryJennifer M. P. Woo, Faith Simmonds, Anne Dennos et al.|Arthritis Care & Research|2023Cited by 4