Total cost. The price paid for a security plus the broker's commission and any accrued interest that is owed to the seller (in the case of a bond).
If you want to become a medical examiner, you must earn a medical degree (M.D.). Once you have earned your medical degree, you can seek out knowledge in a pathology residency. Following your residency, you'll sub-specialize in a forensic pathology fellowship.
Because medical examiners are physicians, they must earn a Doctor of Medicine (MD) degree from an accredited medical school, where they specialize in forensic pathology. Medical examiners must complete an additional 3-4 years of residency training in pathology.