Chemical pathology is the study of the cause and progress of diseases by using chemistry and other laboratory study. A chemical pathologist uses biochemical data from the study of tissues, cells and fluids from the body to aid in detecting, confirming and monitoring diseases. This specialist can act as a clinical consultant in the diagnosis and treatment of diseases.

Doctor density varies by specialty and location. Missouri has 3 practicing chemical pathologists. Broken out by city, chemical pathology doctor density in Crystal City is 1, in Farmington is 1, in Florissant is 1, and in Saint Louis is 3.

Missouri is bordered by the Mississippi River on the east and the Missouri river on the west. Missouri became a state in 1821, and its population is 5,800,310. Jefferson City is the capital of Missouri, though Kansas City is the largest. When in St. Louis, take a ride up the Gateway Arch, enjoy a riverboat cruise, or visit the unique International Bowling Museum and Hall of Fame. Two presidents are from Missouri: Ulysses S. Grant and Harry Truman, and scores of famous people, such as Walt Disney, Vincent Price, Brad Pitt, writer Mark Twain (Samuel Clemens), outlaw Jesse James, frontierswoman Calamity Jane, baseball great Yogi Berra, and musicians Chuck Berry, Sheryl Crow, and jazz musician Charlie “Bird” Parker.

According to 2005 Census estimates, Missouri has a population of 5,800,310. Of this population, 1,344,902 are under the age of 18 and 768,463 are at or above the age of 65.