During the past year investigations have been started on the subject of chronic non-tuberculous arthritis which must necessarily continue for a considerable period of time before sufficient data can be accumulated to make any authoritative statements possible; but enough has been accomplished to indicate definitely the line of investigation in the future and it seems appropriate at this time to gather together the observations already made into a preliminary report.
The class of cases about which the work has centered up to the present time have been those obscure chronic types called rheumatoid arthritis, leaving out of consideration undoubted cases of infectious origin like gonorrheal arthritis, also traumatic varieties or those due to mechanical irritation simply, and the neuropathic kinds represented by Charcot's joints. Clinical material has been obtained from the Massachusetts General Hospital and also from Dr. Joel Goldthwait's private practice, so that many persons have been seen in
MARSHALL HW. THE ETIOLOGY OF CHRONIC NON-TUBERCULOUS ARTHRITIS.A PRELIMINARY REPORT.. JAMA. 1908;LI(11):890–894. doi:10.1001/jama.1908.25410110012001c
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