Bio-Reference Laboratories, Inc. provides clinical laboratory testing services for the detection, diagnosis, evaluation, monitoring, and treatment of diseases in the United States. The company focuses on esoteric testing, molecular diagnostics, anatomical pathology, genetics, womens health, and correctional health care services. It offers chemical diagnostic tests, such as blood and urine analysis; blood chemistry; hematology services; serology; radio-immuno analysis; toxicology, including drug screening; pap smears; tissue pathology comprising biopsies; and other tissue analysis, as well as cancer cytogenetic testing, genetic testing, and cytology testing services. The company also operates a clinical knowledge management service unit, which uses customer data from laboratory results, pharmaceutical data, claims data, and other data sources to provide administrative and clinical decision support systems; and a Web-based connectivity portal solution for laboratories and physicians. It serves physicians, geneticists, hospitals, clinics, and correctional and other health facilities. The company was founded in 1981 and is headquartered in Elmwood Park, New Jersey.