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quest diagnostics (nyse: dgx) empowers people to take action to improve health outcomes. derived from the world's largest database of clinical lab results, our diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management. quest annually serves one in three adult americans and half the physicians and hospitals in the united states, and our 45,000 employees understand that, in the right hands and with the right context, our diagnostic insights can inspire actions that transform lives. the company offers physicians the broadest test menu (3,000+ tests), is a pioneer in developing innovative new tests, is the leader in cancer diagnostics, provides anatomic pathology (ap) services, & interpretive consultation through its medical & scientific staff of about 900 m.d.s & ph.d.s. the company reported 2014 revenues of $7.4 billion. quest diagnostics offers the most extensive clinical testing network in the u.s., with laborator