Withdrawal from opioids such as oxycodone causes physical symptoms similar to the flu. Withdrawal also causes psychological symptoms whose demoralizing affects can be just as overpowering as the physical symptoms of withdrawal.
A director is a person from a group of managers who leads or supervises a particular area of a company, program, or project. Companies that use this term often have many directors spread throughout different business functions or roles (e.g. director of human resources).
While a company's chief executive officer, or CEO, provides overall direction, other officers, such as a chief financial officer, or CFO, also play vital roles. In addition to a CFO, a company might also employ a CAO, or chief accounting officer. While a company's CFO and CAO might seem to share the same duties, their roles are usually different.