"pertaining exclusively" is correct and usable in written English.
You can use it when you want to express that something is particularly relevant to a certain subject or purpose and unconnected to anything else. For example, "This guidebook pertains exclusively to the operation of this specific machine."
According to the Oxford English Dictionary, the definition of the word privy in Privy Council is an obsolete one meaning "of or pertaining exclusively to a particular person or persons, one's own"; hence the council is personal to the sovereign.
Data pertaining exclusively to these family-based analyses were not included in this report.
This more frequent involvement of 2R chromosome ends in fusions, pertaining exclusively to mutant line K12, was observable from G3 throughout G6.
7 We adapted this scale by removing three items pertaining exclusively to randomised trials (specifically, "blinding of study subjects to the intervention," "randomization to intervention groups," and "concealed randomized intervention assignment").
Generally speaking, with the introduction of self-regulation in the agribusiness sector the public authority will set rules and regulations pertaining exclusively to the public domain (such as basic food safety requirements), while all secondary rules – relating to consumer quality and taste, for instance – will be set by the associations themselves.
And if you believe that, you probably see the ongoing debate about abortion as exclusively pertaining to the sanctity of life rather the the underlying issue: the control of women and their bodies.
Those representatives will function as spokesmen, with no voting rights, and will be involved exclusively in matters pertaining to the implementation of the peace deal, Santos said.
The old policy said that "personnel data relating exclusively to supervision and pertaining therefore to the quality of a teacher's service shall be retained in the original school".
We exclusively treat those assumptions pertaining to biology and refer to them as biological background assumptions throughout.
Articles that only discussed issues pertaining to TasP research (e.g., ethical issues that arise in randomized controlled trials) were excluded, as well as articles that focused exclusively on other HIV prophylaxis regimes (e.g., PreP).
Analyses pertaining to the reason for discontinuation included only those patients who had stopped their prior anti-TNF therapy exclusively for one of these reasons.
