in order to examine the relation of epstein-barry virus ( ebv ) infection to chronic arthritis in children antibodies to eb virus capsid antigen ( ebvca ) and rheumatoid arthritis nuclear antigen ( rana ) were analysed in sera from 133 patients classified as juvenile rheumatoid arthritis ( jra ) or pauciarticular , polyarticular , or systemic juvenile chronic arthritis .
C3495559
juvenile rheumatoid arthritis
C1384600
systemic juvenile