The phrase "of research studies" is correct and usable in written English.
You can use it when referring to a particular set of research studies conducted on a specific topic or issue. For example: "We reviewed hundreds of research studies examining the long-term effects of regular exercise on physical and mental health."
"African-American women are ready and willing to be part of research studies".
For example, hundreds of research studies confirm the adage that power corrupts.
A number of research studies are looking at COMT, including several involving the American military.
In fact, a number of research studies have demonstrated that the additional benefits could be extensive.
A review in the Journal of the American Medical Association found that up to 40% of research studies with negative results are spun into positive findings.
He suggested that he talk about mifepristone, noting that he had experience with the drug since he provided it to women as part of research studies.
"There's a bunch of research studies suggesting that the under-65 are really good at predicting," said Richard G. Frank, a professor of health care policy at Harvard.
In hundreds of research studies, there is not one shred of evidence that confers anyone with A.D.D. with an increased ability in creativity, intelligence or motor skills.
The company has commissioned dozens of research studies to prove to reluctant advertisers that these new bold advertisements actually influence users.
It seems the US military are at least interested in discovering if the Shaolin monks are skilled in more than just theatre, with a number of research studies underway to militarise ancient Buddhist techniques of mindfulness.
A growing number of research studies internationally have shown how regular exercise, as long as it increases someone's heart rate, can help prevent cancer, or lower the risk of it returning.
