Bio-Reference Laboratories, Inc. is a clinical testing laboratory, which offers testing, information and related services to physician offices, clinics, hospitals, employers and governmental units. The Company offers a range of laboratory testing services utilized by healthcare providers in the detection, diagnosis, evaluation, monitoring and treatment of diseases. It is focused on esoteric testing, molecular diagnostics, anatomical pathology, genetics, women's health and correctional health care. It offers a list of chemical diagnostic tests, including blood and urine analysis, blood chemistry, hematology services, serology, radio-immuno analysis, toxicology and other tissue analysis. It operates a clinical knowledge management service through its PSIMedica business unit. It also operates a Web-based connectivity portal solution for laboratories and physicians through its CareEvolve subsidiary. Its laboratory testing business consists of routine testing and esoteric testing.