Q: How many examples can I add within the body of a review article?
I put the case as; various kind of efficient culture devices are developed, and the clinical trial is reported for each devices. When reporting these as specific examples in review article, I want to mention some specific numerical data for methods and results with paraphrasing in body texts, other than just comparing those in tables with citations. For that, is there common number of lines to which I can write?
Generally speaking, each journal has different specifications for the word count of different article types. Review articles are usually longer than original research articles, but the word limit would depend on your target journal. Journals also specify the maximum number of tables and figures that you can use in an article. However, journals generally don't have a specific word count for each section of the paper, nor do they mention how many words or sentences you can devote for examples that you wish to cite.
It is up to you how you wish to present your article and how many examples you want to include. As long as you are not repeating the same data that you have used in tables and figures, you can use as many examples as you feel you would require to substantiate your argument.
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This content belongs to the Conducting Research Stage