Comment on “The State of Exosomes Research: A Global Visualized Analysis” and “Current Research Trends in Traditional Chinese Medicine Formula: A Bibliometric Review from 2000 to 2016”

Abstract

“)e State of Exosomes Research: A Global Visualized Analysis” [1] and “Current Research Trends in Traditional Chinese Medicine Formula: A Bibliometric Review from 2000 to 2016” [2] were recently published in BioMed Research International and Evidence-Based Complementary and Alternative Medicine, respectively. Wang et al. stated in Section 2.1 that “Publication information from the Web of Science (SCI-Expanded)” and in Section 2.2 that “the research terms” were as follows: theme� exosome∗ AND publishing year� (from 1994 to 2017) AND Language� (only English) AND Document types� (REVIEW OR ARTICLE)” [1]. Using the methods applied by Wang et al. [1], we found 7,323 publications which are very different from 4,960 in the original paper [1]. To improve the author’s method, appropriate keywords should be applied. A total of 7,323 English publications including 5,682 articles and 1,641 reviews were found in SCI-EXPANDED (updated on April 26, 2019) from 1994 to 2017 with keywords such as “exosomes” and “exosome” in the topic including document title, abstract, author keywords, and