The phrase "at frequently" is not correct and cannot be used in written English.
It seems to be a mistaken combination of "at" and "frequently," which are not meant to be used together in this context.
Example: "I visit the library frequently to study."
Alternatives: "often" or "regularly".
Half of them received new AT, frequently initiated out-of-hours.
A typical case is the administration of Adenosine which, meant to terminate AT, frequently triggers AF by increasing potassium conductance via IK,ACh [ 18].
The routines supporting AT use could also quickly change as a person's dementia progressed, meaning carers 'work' in relation to AT frequently had to adapt and change if AT use was to be sustained.
Respondents who reported using or prescribing a specific AT frequently (154 HCPs and 45 P&Cs) were asked the question: 'Thinking about the AT you use most often, do you think this device is….'.
Car hire firms make their profits by selling add-ons, at frequently absurd prices.
One piece is in sight constantly, to be looked at frequently out of the corner of one's eye.
The attorney looked at me frequently for "approval" and I smiled at him.
His solitary-by-choice rented rooms were at first frequently changed.
Along the way, the young man would look at, and frequently buy, Renaissance paintings.
I sat and looked at the frequently asked questions sheet, produced by the Gender Trust.
The one I've been looking at most frequently since the war started is The Agonist.
