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Quest Diagnostics (R) Incorporated, spun off from Corning Incorporated in 1996, provides doctors and general consumers worldwide with diagnostic testing services. The firm maintains a network of 30 laboratories, 150 rapid response laboratories, and 2,000 patient service centers. The company offers clients substance abuse, anatomic pathology, genomic, disease state, oncology, endocrine, cardiovascular disease, infectious disease, toxicology, and other tests. It provides medical researchers with clinical trial laboratory support services. It offers life insurance firms risk assessment services. The company processes tests for 550,000 patients daily. Quest Diagnostics acquired SmithKline Beecham Clinical Laboratories (SBCL) in 1999, American Medical Laboratories (AML) in 2002, Unilab Corporation in 2003, and LabOne in 2005. The acquisitions have allowed the firm to provide customers with expanded esoteric testing, substance abuse testing, and clinical information services. Quest Diagnostics went public in 1996. It is traded on the New York Stock Exchange under the DGX symbol.
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Information Sources, Inc.