Fig. 4From: An evidence mapping of systematic reviews and meta-analysis on traditional Chinese medicine for ulcerative colitisEvidence map of TCM in the treatment of UC. The bubble plot in Fig. 4 summarizes TCM treatment for UC in systematic reviews published as of 2021, the estimated size of the literature (y-axis), the effectiveness trend according to reviews (x-axis), and the confidence of systematic reviews (bubble size)Back to article page