title: [Serum ribonuclease in rheumatic disease. I. Serum alkaline ribonuclease activities in rheumatic diseases, especially in malignant rheumatoid arthritis].
mesh_terms: D000328:Adult; D001172:Arthritis, Rheumatoid / Q000201:enzymology* / Q000209:etiology; D006801:Humans; D008180:Lupus Erythematosus, Systemic / Q000201:enzymology; D008875:Middle Aged; D012260:Ribonucleases / Q000097:blood*
chemical_list: D012260:Ribonucleases