Clinical lipidology is a branch of medicine focusing on lipid and lipoprotein metabolism and associated disorders. A physician who specializes in the field of lipidology treats patients with lipid disorders and cardiovascular disease. This physician specialist studies and treats cholesterol, triglycerides and lipoproteins in the blood, all of which contribute to heart disease and atherosclerosis. The field of lipidology is growing rapidly because of the number of patients diagnosed with coronary heart disease, obesity and diabetes mellitus.

Oklahoma’s population is 3,547,884, and its largest city and centrally located capital is Oklahoma City. Oklahoma was recognized as a territory in 1890, but not accepted into the union as a state until 1907. Visitors to the capital can see the National Cowboy Hall of Fame or view the stockyards area, which is the largest cattle market in the world. Famous people from Oklahoma include singers Woody Guthrie, Garth Brooks and Vince Gill, actor and director Ron Howard, and humorist Will Rogers.

According to 2005 Census estimates, Oklahoma has a population of 3,547,884. Of this population, 803,170 are under the age of 18 and 456,686 are at or above the age of 65.