... conducted assessment of Chlamydia trachomatisserology and DNA extraction. BJ and JS participated in thedesign and coordination of the study, and drafted the manu-script. AH and AS analyzed microbiological ... the synovium of patients with UA [9], suggesting that some of these patients may have a 'forme fruste' of ReA.Arthritogenic bacterial DNA and RNA from Chlamydia tracho-matis, Chlamydophila ... analyzed the data, and revised the manuscript. HF, MY, SB, NB and SS madepathological diagnosis, conducted sampling procedures, and performed clinical and rheumatological data analyses. AZ, CBand...