Chinese research into ulcerative colitis from 1978 to 2017: A bibliometric analysis

Figure 1 Number of papers focused on ulcerative colitis in China from 1978 to 2017. A total of 16257 papers were published for the period of 1978-2017. Amongst them, 7561 papers were published in core journals, 4641 met the requirements of evidence-based articles, and 4177 were publications on randomized controlled trial. The number and proportion of evidence-based articles and randomized controlled trials were increased significantly. Both the quantity and quality of the literature focused on ulcerative colitis were improving.