The phrase "a study that suggested" is correct and usable in written English.
You can use it when referring to research findings or conclusions drawn from a study.
Example: "A study that suggested a link between diet and mental health was published last year."
Alternatives: "a study indicating" or "a study proposing".
Dr. McKinney pointed to a study that suggested there might be enough for all.
He cited a study that suggested the proposed alliance would lead to consumer benefits, mostly in lower fares, of at least $40 million a year.
Most of her colleagues questioned her results, and the drug company Novartis promptly did a study that suggested the exact opposite: you should blockade GDF11.
In addition, a study that suggested that taking estrogen might increase the risk of cancer in women caused Wyeth, a major drug company, to lose about one-quarter of its value and pushed other big drug makers lower.
An article in Business Day on Saturday about Celebrex and the potential lawsuits against its maker, Pfizer, because of a study that suggested it increased the risk of heart attacks, misstated the given name of a lawyer involved in such cases.
Not long after a typically underwhelming showing by the British contingent at the Wimbledon championships in July, the British Journal of Sports Medicine published the results of a study that suggested to beleaguered English tennis fans that things are only going to get worse.
Last month, JAMA Oncology published a study that suggests the standard treatment may be too aggressive.
Among the research released this 14 February is a study that suggests that, despite rising divorce rates, the majority of UK couples are happy in their relationship".
The review coincides with the publication in the British Medical Journal of a study that suggests that e-cigarettes can increase success rates for smokers who are attempting to quit.
Researchers in the US may have uncovered an new side-effect of paracetamol with a study that suggests the drug dampens down people's emotional reactions.
Teenagers in America are resorting to sex work because they cannot afford food, according to a study that suggests widespread hunger in the world's wealthiest country.
