RT Journal Article SR Electronic T1 Antibody response to influenza immunization in patients with systemic lupus erythematosus. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 2295 OP 2295 VO 30 IS 10 A1 Ulises Mercado YR 2003 UL http://www.jrheum.org/content/30/10/2295.abstract AB