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. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years. Heart is a muscular organ which plays major role in pumping blood all over the body through the blood vessels of circulatory system. It is able to provide blood to the body with oxygen and nutrients and it will remove all the metabolic waste. The location of the heart is specifically in the mediastinum, the middle compartment of the thorax. Heart transplantation is the replacement of a patient's diseased or injured heart with a healthy donor heart. It is a surgical procedure performed on patients with end-stage heart diseases. Heart transplantation cannot be considered as a cure of heart disease, but it can be considered as a treatment to improve the quality of life.
Last date updated on July, 2014