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.
In contrast to the other types of vascular calcification, vascular calciphylaxis or calcific uremic arteriolopathy (Figure 3D) is a more systemic process characterized by diffuse calcification of the media of small to medium sized arteries and arterioles with intimal proliferation resulting in tissue necrosis.