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The phrase "a versus" is not correct in standard written English.
It is typically used in contexts where a comparison or contrast is being made between two entities, but it should be "versus" without the article "a."
Example: "The debate was about cats versus dogs."
Alternatives: "cats against dogs" or "cats in comparison to dogs."
Exact(53)
For multiarm trials, the objectives should clarify the way in which all the treatment groups will be compared (eg, A versus B; A versus C).
"We're a fancy hospital, and we can't even do the A versus B test in a timely fashion," Dr. Sepkowitz said.
When Professor Ferguson compares blacks and whites of similar income, he finds whites outperform blacks (A- versus B+ at the top income).
However, Trial 3 comparing "B" versus "D" would not be included in the hypothetical "A" versus "B" network since comparator "D" is neither a comparator of interest nor a common comparator that can indirectly inform an "A" versus "B" comparison.
A comparison of Group A versus Group B in terms of EPs sonographic size showed no difference.
The number of transfusions administered was similar, 5.5 ± 3.2 (Unit A) versus 5.5 ± 2.3 (Unit B) respectively.
Similar(7)
"Why would we not pointedly come back and try to communicate something about Chick-fil-A versus McDonald's?" Mr. Robinson said.
the two debates, A- versus B-theory and presentism versus eternalism, do not map precisely onto each other.
Dead cells and aggregates were excluded from analysis by gating cells in a FL2-A versus FL2-W scatter plot.
A notable strandedness is observed for the poly-A versus poly-T and for AAT versus ATT repeat motifs.
First, a lymphocyte gate, singlet gate (FSC-A versus FSC-H), live/dead gate was used to identify living lymphocytes.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com