Invasion is defined as the forcible occupation of the premises without prior intimation. It affects the natural working environment. It is a direct form of cancer spreading to space surrounding nerves. It is concerned with head, neck, prostate gland and colorectal organ. Prediction of disease is very difficult. It can be treated surgically and by using radiotherapy management. Scholarly peer review is the process of subjecting an author's scholarly work, research, or ideas to the scrutiny of others who are experts 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.
Last date updated on September, 2014