Fig. 4.

The quality analysis of the six domains: title and abstract, introduction, methods, results, discussion, and other information. The length of the internal radius represents the percentage of “reported” and the external radius represents the percentage of “not reported”. The indigo issue represents “title and abstract”. The yellow issue represents “introduction”. The orange issue represents “methods”. The green issue represents “results”, The blue issue represents “discussion”. The pink issue represents “other information”. A. The Asian ginseng pie chart. B. The American ginseng pie chart.