Laboratory Corporation of America Holdings is a global life sciences company. The Company provides information to help doctors, hospitals, pharmaceutical companies, researchers, and patients make decisions. Its segments include Labcorp Diagnostics (Dx) and Labcorp Drug Development (DD). The Dx segment is an independent clinical laboratory business. It offers a menu of frequently requested and specialty diagnostic tests through an integrated network of primary and specialty laboratories across the United States. In addition to diagnostic testing along with occupational and wellness testing for employers and forensic DNA analysis, Dx segment also offers a range of other testing services. The DD segment is a contract research organizations (CRO) business that provides end-to-end drug development services. The DD segment provides these services predominantly to pharmaceutical, biotechnology and medical device companies across the world. It serves clients in more than 100 countries.