The phrase "a trials has shown" is not correct in written English.
It should be "a trial has shown" or "trials have shown" depending on the intended meaning.
Example: "A trial has shown that the new medication is effective in reducing symptoms."
Alternatives: "research has demonstrated" or "studies have indicated".
More than 5 local relapses after the first safety report The TARGIT-A trial has shown the non-inferiority of partial breast radiation via the Intrabeam© system as an IORT compared to WBRT in patients with low risk breast carcinoma.
In children mainly older than 12 months, a trial has shown a significant benefit of cotrimoxazole prophylaxis in HIV-infected children aged 1 14 years in Zambia [ 15].
The addition of convection therapy to dialysis (haemodiafiltration) reduces cardiovascular instability, and a trial has shown that it significantly reduces all-cause and cardiovascular mortality as well as stroke deaths [ 59].
Interferon-γ by subcutaneous injection up to 3 times a week has been given to many patients after a trial had shown a protective result against infection [28].
A meta-analysis on the available randomized controlled trials has shown a mean medium-sized (d = 0.54) effect on a composite score of psychological well-being [ 4].
Secondly, a pooled data from phase 2b and 3 clinical trials has shown an increased incidence of cancer and hepatotoxicity with dapagliflozin [ 42].
An analysis of deaths in these trials has shown a three-fold increase compared to non-irinotecan regimens (Rothenburg et al, 2001).
Nevertheless, a meta-analysis of randomised trials has shown that this approach increases R0 resection rates, reduces loco-regional recurrence and improves survival compared with surgery alone [ 8].
A handful of small-scale clinical trials has shown that some patients benefit from using TMS either to reduce the frequency or diminish the intensity of migraine attacks.
