title: Chronic self-perpetuating arthritis induced in rabbits by a cell-free extract of group A streptococci.
mesh_terms: D000818:Animals; D001172:Arthritis, Rheumatoid / Q000209:etiology* / Q000473:pathology; D002455:Cell Division; D002473:Cell Wall; D002474:Cell-Free System; D002908:Chronic Disease; D004195:Disease Models, Animal; D005122:Exudates and Transudates / Q000032:analysis; D007270:Injections, Intra-Articular; D007717:Knee / Q000473:pathology; D007719:Knee Joint; D007962:Leukocytes; D008854:Microscopy, Electron; D011817:Rabbits; D013291:Streptococcus