This is a literature review. Please use sub-headings. Ideally I would like minimum of 15 journal articles from the last 7-8 years to be used. Please provide the DOI numbers for all articles used. I will also upload files to help with referencing style and journal articles. I do not need an introduction or a methodology. I just need the main body and a conclusion. Please read the files uploaded as it would help you with my order. If you need anymore information please ask me.