Fig 2.

A, Collaboration efforts between 90 countries/regions on TCM in asthma from 1991 to 2021. B, CiteSpace network map of institutions involved in TCM and asthma research. Each circle in the map represents an institution. The size of the circle is positively correlated with the number of articles published by the institution, and the link between the 2 circles represents the collaboration between 2 institutions on the same article. There is a positive correlation between the line thickness and cooperation frequency. The top 10 institutions with the most publications are shown. (Beijing Univ Chinese Med, Korea Inst Oriental Med, Nanjing Univ Chinese Med, China Med Univ, Kyung Hee Univ, Shanghai Univ Tradit Chinese Med, Fudan Univ, Chinese Acad Sci, Chang Gung Univ, and China Acad Chinese Med Sci were in the top 10.) Timespan: 1991 to 2021; Slice length = 1.