What is this article about?
Let's briefly examine some basic pointers on how to perform a literature review. If you've managed to get your hands on peer-reviewed articles, then you may wonder why it is necessary for you to perform your own article critique. Surely the article will be of good quality if it has made it through the peer-review process? Unfortunately, this is not always the case. Publication bias can occur when editors only accept manuscripts that have a bearing on the direction of their own research, or reject manuscripts with negative findings. Additionally, not all peer reviewers have expert knowledge on certain subject matters, which can introduce bias and sometimes a conflict of interest.