Supplemental material for Effect of pericardial effusion on outcomes in children admitted with systemic lupus erythematosus: a multicenter retrospective cohort study from the United States

Supplemental Material for Effect of pericardial effusion on outcomes in children admitted with systemic lupus erythematosus: a multicenter retrospective cohort study from the United States by S T Dalby, X Tang, J A Daily, S Sukumaran, R T Collins and E H Bolin in Lupus