The phrase "pertaining only to" is correct and usable in written English.
You can use it when referring to something that is relevant or applicable exclusively to one thing. For example, "This policy pertains only to students enrolled in the college."
First, not all studies allowed us to extract data pertaining only to pneumonia patients, and therefore a small proportion of the overall aggregate results does not pertain to this disease.
They can pose questions pertaining only to the issues the speaker has voiced.
Significantly, the adjustment boards charged with administration of the minor dispute provisions have understood these provisions as pertaining only to disputes invoking contract based rights.
Registry cleaner programs may round up active Registry entries along with the deadwood in the database, so examine the program's findings carefully and make sure you are eliminating data pertaining only to programs and devices you no longer use.
Although it is not clear whether Aristotle thought of final causality as pertaining only to the domain of the living, it is certainly true that he considered it essential for understanding or explaining the nature of biological organisms.
This study reports data pertaining only to Ethiopian and Eritrean immigrants.
He managed to uncover previously unrecorded manuscripts and biographical records pertaining not only to Shakespeare but also to other writers, including Samuel Taylor Coleridge and William Wordsworth.
The president has also established a commission tasked with revising policies pertaining not only to women's marriage rights but also to inheritance laws.
To make these choices, it is helpful to have data pertaining not only to efficacy and effectiveness of a given therapy, but also to its cost-effectiveness.
Although habituation of both WT and Mecp2 Stop mice followed a non-linear fit, there were considerable differences pertaining not only to the half-life of activity decay, but also the plateau and peak activity levels, that were higher for WT mice.
University requirements pertaining to only a subset of advanced degrees are described in the "Degree-Specific Requirements" section.
