|Transplantation is the transfer of essential cells, organs or tissues from one location to another with in a same person or from one individual to the other for the purpose of replacing damaged or absent organs in patients. Many of the diseases which will not be readily curable by different types of treatments can be cured by this technique of transplantation. Transplantation technique can be mainly divided into two types called allograft transplantation and autograft transplantation. Autograft transplantation is a transplantation which is performed within the same person by transferring organs or tissues from one place to another within the same body, whereas allograft transplantation is a transplantation which is performed between two different individuals or between two species.
Review articles are the summary of current state of understanding on a particular research topic. They analyze or discuss research previously published by scientist and academicians rather than reporting novel research results.
Review article comes in the form of systematic reviews and literature reviews and are a form of secondary literature. Systematic reviews determine an objective list of criteria, and find all previously published original research papers that meet the criteria. They then compare the results presented in these papers. Literature reviews, by contrast, provide a summary of what the authors believe are the best and most relevant prior publications.
The concept of "review article" is separate from the concept of peer-reviewed literature. It is possible for a review to be peer-reviewed, and it is possible for a review to be non-peer-reviewed.