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Synoviorthesis with erbium-169: a double-blind controlled comparison of erbium-169 with corticosteroid.
  1. J M Gumpel,
  2. S A Matthews,
  3. M Fisher


    Intra-articular injections of erbium--169 citrate and methylprednisolone acetate in hand joints were compared in a randomly selected double-blind trial. The patients included 21 with rheumatoid arthritis and 3 with psoriatic arthritis, and the design was an intrapatient comparison. No difference between joints treated with the radioisotope or steroid was observed in the year following injection.

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