thirty-two patients with the felty syndrome , defined by the presence of rheumatoid arthritis , splenomegaly , and neutropenia , have been studied in comparison with 32 patients with rheumatoid arthritis matched for age , sex , and disease duration , and 9 patients with rheumatoid arthritis and idiopathic neutropenia .
C0015773
felty syndrome
C0003873
rheumatoid arthritis