title: Rickettsial pox and the rheumatoid factor.
authors.forename: E
authors.initials: E
authors.lastname: Toone
mesh_terms: D001172:Arthritis, Rheumatoid / Q000266:history / Q000276:immunology*; D049673:History, 20th Century; D006801:Humans; D009519:New York City; D012217:Rheumatoid Factor / Q000032:analysis*; D012288:Rickettsiaceae Infections / Q000266:history / Q000276:immunology*; D014481:United States
chemical_list: D012217:Rheumatoid Factor