A variable that we purposefully change or manipulate is called the independent variable. The thing that changes in response is called the dependent variable. This creates a cause and effect relationship.
Medicare Eligibility Requirements. To be entitled to Medicare, you must be a U.S. citizen or a permanent legal resident, and answer yes to at least one (1) of the following questions:
Exceptions to the medically necessary requirement. The following procedures are covered by Medicare if you meet the eligibility criteria for the health-care service. Most of these services are covered under Medicare Part B.