Solve the system by the method of elimination. 
Definitions:
Coronary artery disease
A condition characterized by the narrowing or blockage of the coronary arteries due to plaque buildup, leading to reduced blood flow to the heart.
Atherosclerosis
The accumulation of fatty deposits along the inner walls of arteries.
Total cholesterol
The sum of all the cholesterol types in the bloodstream, including HDL, LDL, and VLDL.
Blood test
A clinical analysis performed on a blood sample to evaluate general state of health or detect illnesses.
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