|Vascular tumor is occurring of malignant or benign tumor in blood vessels. Few types of vascular tumors are: epitheliod hemangioendothelioma, tufted angioma, hemangiopericytoma and kaposiform hemangioendothelioma. epitheliod hemangioendothelioma is formed in liver, lungs and bones. Tufted angioma is occurred in early childhood regions are upper body and neck.
High-impact journals are those considered to be highly influential in their respective fields. 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.