|It is defined as a clinical condition which is characterized by widening of blood vessels due to excess relaxation of muscular wall of the vessels. The medicine that causes dilation of blood vessels is known as vasodilators. Generally vasodilators are given to decrease the blood pressure. It openly affects the connection between mean arterial pressure, cardiac output and total peripheral resistance.Scholarly peer review is the process of subjecting an author'sscholarlywork, research, orÂ ideasÂ to the scrutiny of others who areÂ expertsÂ in the same field, before a paper describing this work is published in a journal. The work may be accepted, considered acceptable with revisions, or rejected. Peer review requires a community of experts in a given (narrowly defined) field, who are qualified and able to perform reasonably impartial review.