the induction of a gvhr in ( balb/c x a ) f1 mice by i.v . injection of 80 to 120 x 10 ( 6 ) balb/c spleen cells leads to the development of chronic progressive polyarthritis , which shares several of the articular and extra-articular manifestations of human rheumatoid arthritis .
C0162323
polyarthritis
C0022417
articular