The phrase "about the study once" is not correct and lacks clarity in written English.
It may be intended to refer to a single instance of discussing or referencing a study, but it is ambiguous without additional context.
Example: "We only talked about the study once during the meeting."
Alternatives: "regarding the study one time" or "concerning the study a single time".
Those followers, each of whom have Celiac disease, were permitted to blog about the study once it was released to the public.
The patients were reminded about the study once, within a month, and a new letter and questionnaires were sent to them.
Additionally to the signed answer card for blood taking, patients would be informed about the study once again at the blood taking appointment, and a final consent form in presence of the study coordinator and data manager will be signed before the blood taking commences.
One such indicative report from a Wellington interviewer described her assessment of participants' experiences in more detail: "Although at the initial visit some participants had concerns and were unsure about the study, once they were given more information and further explanation of the study then they willingly and happily participated.
Inclusion criteria: patients aged 18 years and older initiating treatment with antidepressants prescribed by the family care doctor (GP), or a psychiatrist, or another specialist, who give their consent to participate in the study once properly informed about its objectives.
"I ran the studies once," Fortune said.
I read a study once about the source of home field advantage.
Each class was addressed once about the study and one email reminder was sent to each student.
Each class was addressed once about the study and all students subsequently sent an individual email, inviting them to participate.
A second limitation is that the families were informed only once about the study, so it is possible that some could have forgotten about it.
Community health workers visited each household in the study area once a month, inquired about fever cases, and encouraged them to visit project health outposts.
