It is a chronic condition which affects those blood vessels which are related to lungs or from the lungs. Causes of pulmonary vascular diseases are varies according to lungââ¬â¢s blood vessels are affected. The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number ofàcitationsàto recent articles published inàscience and social science journals in a particular year or period, and is frequently used as aàproxyàfor the relative importance of a journal within its field. It is first devised byàEugene Garfield, the founder of theàInstitute 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.
Last date updated on September, 2024