Do you have 20 hours a day to spend reading research papers? Yawn! The number of journal articles published keeps increasing every year. That is why a literature review is so important: it gives busy researchers a way of keeping updated with important developments in their fields, and helps them identify the most important and seminal studies that they should be aware of. <\/p>\n\n\n\n
It\u2019s not just a paper that cites<\/a> a lot of other papers! According to Jahan et al. (2016)<\/a>, a literature review provides \u201ca complete summary of the current literature relevant to a research question.\u201d Carrera-Rivera et al. (2022)<\/a> describe literature reviews as a \u201ccritical first step in research to understanding the state-of-the-art and identifying gaps and challenges in the field.\u201d <\/p>\n\n\n\n Essentially, a literature review collects and summarizes existing research on a specific topic, with the purpose of generating \u201ca comprehensive description, integration, or conclusion\u201d about that topic (MacLeod et al., 2021<\/a>). <\/p>\n\n\n\n Your literature review can be <\/p>\n\n\n\n You can also directly work with data, pooling and combining data from multiple different studies and reanalyzing the data to draw new insights. That\u2019s called a meta-analysis<\/strong>. <\/p>\n\n\n\n One really neat thing about meta-analyses is that they can be prospective<\/em>, where you plan them in advance. You identify the studies or cohorts you want to include even before the final results of those studies are in. This prevents some of the bias that arises when you follow the traditional approach of doing the meta-analysis after<\/em> the studies are published. <\/p>\n\n\n\n If it\u2019s the first time you\u2019re writing a literature review<\/a>, here\u2019s how you can get started. <\/p>\n\n\n\n \u201cIs a history of urinary tract infection a risk factor for developing renal cell carcinoma in postmenopausal women?\u201d <\/p>\n\n\n\n <\/p>\n\n\n\n All the variables you are interested in, like the patient population, intervention, outcomes <\/p>\n\n\n\n Any synonyms or closely related terms (e.g., \u201cobesity management\u201d and \u201cobesity treatment\u201d; \u201cvitamin A intake\u201d for \u201cvitamin A consumption\u201d; \u201cCOVID 19\u201d for \u201cSARS-CoV-2\u201d) <\/p>\n\n\n\n Take a look at how Lazar et al. (2024)<\/a> developed and described their list of keywords in their narrative review on the mechanisms of initiation and progression of lung fibrosis following SARS-CoV-2 infection. <\/p>\n\n\n\n <\/p>\n\n\n\n You also need to speculate about what could be responsible for differences between studies, especially if they\u2019re reporting starkly different outcomes. Take for example this paragraph from Kiss et al.\u2019s (2021)<\/a> systematic review on granulocyte and monocyte apheresis (GMA) as a therapy in ulcerative colitis: <\/p>\n\n\n\n However, data on the efficacy of GMA are still debated. The first studies published in Japan showed remission or response rates of up to 60%\u201380%.<\/em>4<\/sup><\/em><\/a>\u2013<\/sup><\/em>6<\/sup><\/em><\/a>\u202fSands\u202fet al\u202freported a study with a large number of patients comparing GMA to a placebo, and they found no significant difference in terms of clinical response.<\/em>7<\/sup><\/em><\/a>\u202fThis substantial difference between studies could be explained by the heterogeneity of patients\u2019 characteristics, most probably by the varying severity and extent of the disease.<\/em> <\/p>\n\n\n\n If your literature review is a standalone paper:<\/strong> Start with an introduction that explains what topic you\u2019ve chosen and why a literature review is necessary on that topic. Depending on the type of review you\u2019re conducting, you may need to include a detailed Methods section that describes your search strategy as well. Your Results section will cover the \u201cmeat\u201d of your review and present your insights to readers (be sure to also include essential numerical details like total number of studies included and excluded!). <\/p>\n\n\n\n <\/p>\n\n\n\n As large language models (LLMs) like ChatGPT become more popular in academia, it’s natural to wonder whether you can simply outsource your literature review to one. <\/p>\n\n\n\n In short: No!\u202f <\/p>\n\n\n\n Tools like ChatGPT are capable of generating “academic-sounding” text but they cannot replace the original insights and creative perspectives that YOU come up with, drawing on your years of experience in the field.\u202f <\/p>\n\n\n\n Further, even the most recent version of ChatGPT, ChatGPT4o, relies on training data that is around 2 years old<\/a>. That means it is not aware of recent developments, including recently published papers in your field. <\/p>\n\n\n\n Finally, it’s been well documented that ChatGPT can generate fake citations and references that look genuine. In the study by Kacena et al. (2024)<\/a>, up to 70% of the reference list generated by AI in a review article was fake. <\/p>\n\n\n\n Nevertheless, you can still harness the power of AI in your literature review. Use a tool that has been developed specifically for academia, like Paperpal<\/a>, and which can actually search the literature and find genuine and relevant published research for you to cite. Be sure to scrutinize all AI-generated text to ensure its accuracy and report using AI<\/a> as mandated by your journal (in the Acknowledgements section, cover letter, etc.).\u202f <\/p>\n","protected":false},"excerpt":{"rendered":" Find out how to write a literature review, different types of literature reviews, and AI-powered tools to help you write a literature review.<\/p>\n","protected":false},"author":2,"featured_media":1448,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[3],"tags":[60,59,379,146,380,382,381],"ppma_author":[55],"yoast_head":"\nTypes of literature reviews <\/h2>\n\n\n\n
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How to write a literature review: Basic steps <\/h2>\n\n\n\n
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How to write a literature review using AI<\/h2>\n\n\n\n