The following five definitions relating to primary care should be taken together. They describe the care provided to the patient, the system of providing such care, the types of physicians whose role in the system is to provide primary care, and the role of other physicians, and non-physicians, in providing such care.
Where The U.S. Gets Its Oil. America is one of the world's largest oil producers, and close to 40 percent of U.S. oil needs are met at home. Most of the imports currently come from five countries: Canada, Saudi Arabia, Mexico, Venezuela and Nigeria.
It turns out that America's biggest source of oil, by far, is Canada. Along with Mexico, the two North American neighbors provide 39 percent of US oil imports. That goes up to 50 percent if you add in Venezuela.The Middle East, meanwhile, provides a lot less: Saudi Arabia and Iraq provide just 22 percent of US oil imports.Less than a quarter! This matters.t turns out that America's biggest source of oil, by far, is Canada. Along with Mexico, the two North American neighbors provide 39 percent of US oil imports. That goes up to 50 percent if you add in Venezuela.