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S1
Brescia, A. (2005 April, Updated) Juvenile Rheumatoid Arthritis [29 paragraphs]. Nemours Foundation, KidsHealth for Parents [On-line information]. Available FTP: http://kidshealth.org/parent/medical/arthritis/jra.html

S2
(© 2006) Juvenile Rheumatoid Arthritis [93 paragraphs]. Arthritis Foundation Disease Center [On-line information]. Available FTP: http://www.arthritis.org/conditions/DiseaseCenter/jra.asp

S3
Abramson, L. (2004 May, Updated). Arthritis In Children [24 paragraphs]. American College of Rheumatology [On-line information]. Available FTP: http://www.rheumatology.org/public/factsheets/arth_in_children.asp?aud=patc

S4
(2001 July, Currently being updated). Questions and Answers about Juvenile Rheumatoid Arthritis [44 paragraphs]. NIAMS [On-line information]. Available FTP: http://www.niams.nih.gov/hi/topics/juvenile_arthritis/juvarthr.htm