Depends on who's asking. For the Federal government, gross income is income from all sources- earned and unearned. Unearned income is your money making money- investments, dividends, capital gains, sale of property. Earned income is, well, what you actually toiled to attain, like wages, consultation fees, jury duty payment, etc.
Coronary artery calcification is the result of calcium deposition in the coronary arteries. Coronary arteries are blood vessels that deliver blood supply to the heart for its nourishment and oxygen needs.
Buildup of calcium, or calcifications, are a sign of atherosclerosis, coronary heart disease, or coronary microvascular disease. A coronary calcium scan may be performed in a medical imaging facility or hospital. The test does not use contrast dye and will take about 10 to 15 minutes to complete.