The phrase "almost exclusively involved" is correct and usable in written English.
It can be used to describe a situation where someone or something is primarily engaged in a particular activity or context, with very few exceptions.
Example: "The research team was almost exclusively involved in studying the effects of climate change on marine life."
Alternatives: "primarily engaged" or "mainly involved".
The occipital lobes, which lie below and behind the parieto-occipital sulcus, are almost exclusively involved with the reception of visual impulses.
Adverse reactions were common and almost exclusively involved the central nervous system.
The reported adverse reactions in our study almost exclusively involved the CNS.
In HT, the top scoring module listed genes are almost exclusively involved in cell communication (EGFR, VAV3 and RAC1).
The teaching staff, who are almost exclusively involved with osteopathy students, become familiar with each student creating a more personal, relaxed atmosphere in lectures and tutorials.
18 It is important to note that the majority of studies that explored the associated factors and quantified the heritability of MetS almost exclusively involved Caucasians.
Meanwhile, the journeys we collectively celebrate having to do with women almost exclusively involve the wedding aisle and the birth canal.
According to Edwin Wiek, founder of conservation NGO Wildlife Friends Foundation Thailand, which rescues abused elephants, such deadly incidents almost exclusively involve male elephants being forced to work when they are in no state to do so.
Although the treatment of EIB almost exclusively involves pharmacotherapy, there is now convincing evidence that dietary modification has the potential to reduce the severity of this condition [16].
Also, these studies almost exclusively involve American residents only.
The effect of the alpha male is expected to be strongest, since reported disruptions almost exclusively involve higher ranking individuals affecting lower ranking ones (Chapais 1983; Manson 1996).
