title: Significance of persistent differences between normal and rheumatoid synovial membrane cells in culture.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000473:pathology*; D002455:Cell Division; D046508:Culture Techniques; D006801:Humans; D012897:Slow Virus Diseases / Q000473:pathology; D013583:Synovial Membrane / Q000473:pathology*; D013997:Time Factors; D014777:Virus Diseases / Q000473:pathology*; D014780:Viruses / Q000302:isolation & purification