|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 lungâs blood vessels are affected. 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.