Tumor markers, or antigens, are subtances produced in the body by malignant tumors. Their detection is useful in both diagnosing cancer and monitoring therapy. This straight-forward book provides a comprehensive overview designed to assist physicians who deal with cancer patients. The contributions by leading authorities include discussions of techniques for detecting tumor markers, steroid receptors, monoclonal antibodies, flow cytometry, chromosomal abnormalities, radioimmunodetection, ectopic hormones, cell markers in leukemia, nucleolar antigens, and non-specific markers.