The introduction is the first and most important step in writing a research paper, and it should provide the reader with a quick summary of the basic information about the topic (Fried in Clin Spine Surg 32:111–112, 2019). This is a brief introduction should be 1–4 paragraphs. The introduction must be broad and not give specific details of the subject and methodology. These detailed explanations must be given in the subsequent literature review section (Kallestinova in Yale J Biol Med 84:181, 2011). The first and second paragraphs should both convey the topic of study and convince the reader because the study is important and worth considering. Starting the introduction of a research paper with a strong statement can interest your readers. This can be achieved by highlighting the practical relevance of the study, such as clinical relevance or impact on other areas of healthcare, such as cost savings or care efficiency (Pasek in Emprical Soc Sci Paper 1–13, 2012).