“…were separated as described by . This method is based on the precipita- (21,22,16), sarcoidosis and cancer (22,16), rheumatic fever in relapse (9), rheumatoid arthritis (15), diabetes mellitus with complications (14), disseminated malignancies (23,24), leukemia, lymphoma, chronic infections, colitis, acute glomerulonephritis, prostatic hypertrophy (24). Elevated in carcinoma, benign tumors, arthritis, bacterial infections (17), disseminated malignancies (25,26), tuberculosis (27,28).…”