Atherosclerosis of coronary arteries develops and progresses at different rates, and it may manifest clinically at different stages of coronary stenosis. Thrombus formation within a coronary vessel is the precipitating event in acute coronary syndromes (unstable angina, myocardial infarction or sudden cardiac death), as shown in angiographic and pathologic studies.
The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information.
Last date updated on July, 2014