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2. Carcinoma polyarthritis: Manifestations and differential diagnosis;Caldwell;Med Grand Rounds,1982
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4. Cancer polyarthritis resembling rheumatoid arthritis as a first sign of hidden neoplasms;Stummvoll;Scand J Rheumatol,2001
5. Cutaneous vasculitis and cancer: A clinical approach;Gonzalez-Gay;Clin Exp Rheumatol,2000