Atherosclerotic cardiovascular disease is the major cause of morbidity and mortality in Western societies. It is a complex genetic disorder with many genes involved and significant gene-environment interactions. The aim of the study is to identify novel genetic- and biological-markers of atherosclerosis. Atherosclerosis is assessed in the coronary arteries using coronary angiography as well as in the carotid artery (intima-media-thickness) and peripheral vessels (ankle brachial index). Association analysis of genetic and metabolic markers with atherosclerotic burden will be performed to identify novel factors of disposition to atherosclerotic vascular disease.