a, Relation between reporting score of each article with its word count (Note: Article word count is not exactly accurate, since it is measured by counting the words from the beginning of the introduction to the end of the discussion part, thus it might include the running title of each page, footnotes, and the captions of figures and tables). b, Relation between reporting score of each article with its journal word limit (Note: word limitation for journals with no word limitation is counted as 15000). c, Relation between reporting score of each article with journal impact factor. d, Article reporting scores across the years. Relationships of figure a, b, and c were assessed using linear regressions, while a Kruskal-Wallis test was performed for figure d.