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Discover LudwigSuggestions(5)
The phrase "a total of five studies" is correct and usable in written English.
It can be used when summarizing or presenting the number of studies conducted or referenced in a particular context.
Example: "In our research, we analyzed a total of five studies to draw our conclusions about the effectiveness of the treatment."
Alternatives: "five studies in total" or "a sum of five studies".
Exact(12)
A total of five studies qualified for inclusion.
A total of five studies [31] [35] (240 cases and 1233controls) investigated the SERPINE1 (also known as plasminogen activator inhibitor-1) 4G/5G polymorphism.
A total of five studies were subsequently included in the review for safety.
A total of five studies met the criteria and were included in the review.
A total of five studies(13)– (17) met the inclusion criteria, and were included in this analysis.
A total of five studies, from the 48 articles retrieved and reviewed, met our inclusion criteria for content validity and are discussed in this study (TABLE 3).
Similar(48)
A total of six studies were prospective in nature; five of these were cohort studies [ 9, 10, 13, 15, 16] and one was a randomized controlled trial [ 12].
A total of four studies with 328 consumers were conducted.
The search yielded a total of seven studies.
A total of six studies involving 970 patients were included in this analysis.
A total of eight studies that met the inclusion criteria were independently reviewed and encoded by two review authors.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com