The mean of your drug-induced deaths from 2003 to 2007 is roughly around 35,000 deaths.
By definition, a coronary artery disease or simply known as CAD usually refers to the decrease of the area that blood can pass through inside the artery. These could be due to excessive build-ups of cholesterol. Furthermore, the government continuously makes policies that regulate the cholesterol level in foods.
The heart is divided into four chambers. Hope this helps!