title: Rheumatoid nodulosis: an immunohistochemical and ultrastructural study.
mesh_terms: D003165:Complement System Proteins / Q000032:analysis; D006801:Humans; D007124:Immunoenzyme Techniques; D007136:Immunoglobulins / Q000032:analysis; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D012217:Rheumatoid Factor / Q000032:analysis; D012218:Rheumatoid Nodule / Q000276:immunology / Q000473:pathology*
chemical_list: D007136:Immunoglobulins; D003165:Complement System Proteins; D012217:Rheumatoid Factor