title: Authors' reply.
authors.affiliation: Department of Clinical Immunology, Xijing Hospital , Xi'an , China.
authors.forename: W
authors.initials: W
authors.lastname: Dong
authors.forename: Z
authors.initials: Z
authors.lastname: Chen
authors.forename: P
authors.initials: P
authors.lastname: Zhu
mesh_terms: D005260:Female; D006360:Heat-Shock Proteins / Q000378:metabolism*; D006801:Humans; D007719:Knee Joint / Q000378:metabolism*; D008264:Macrophages / Q000378:metabolism*; D008297:Male; D018832:Molecular Chaperones / Q000378:metabolism*; D013167:Spondylitis, Ankylosing / Q000378:metabolism*; D013582:Synovial Fluid / Q000378:metabolism*
chemical_list: D006360:Heat-Shock Proteins; D018832:Molecular Chaperones