Exact(8)
The issue has been studied to death.
"It has been studied and restudied".
Optimism has been studied extensively in relation to schools.
It's a good question, and has been studied by economists.
The phenomenon has been studied from a number of angles.
has been studied.
Cr, has been studied.
The latter has been studied in[3].
Related(17)
Has been explored
Has been found
Has been reconsidered
Has been considered
Has been scrutinized
Has been investigated
Has been examined
Has been researched
Has been evaluated
Has been scrutinised
Has been dusted
Has been distinguished
Has been research
Has been purpose
Has been study
Has worked studied
Has been student
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com