The phrase "a selection of primary" is correct and usable in written English.
It can be used when referring to a group of primary items, sources, or elements chosen from a larger set.
Example: "In this report, we will present a selection of primary sources that support our findings."
Alternatives: "a range of primary" or "a variety of primary".
The day was designed to give a selection of primary school children who don't always have access to the support that their peers receive, an opportunity to learn about careers and present back to their school.
Their work shows a selection of primary studies identified in three different ways: studies comparing methods and tools that already exist, studies suggesting a new method or tool, and studies that suggest test environments for Web Pentest.
All the morphological experiments published in a selection of primary papers from the planarian literature have been curated and introduced in the freely-available database.
Table 1 lists a selection of primary papers from trials aimed at reducing PMTCT of HIV and summarizes their methods for unadjusted and adjusted analysis.
To illustrate the presented formalism, we curated (using a specific software tool, see below) the experiments reported in a selection of primary papers from the planarian literature, creating a centralized database of planarian experiments.
Indeed, we recently compared enrichment patterns of hematological trait-associated variants at sites of open chromatin in a selection of primary hematopoietic cells and their representative cell lines 26.
Measurable activity of P450 reductase was found in a selection of 14 primary human breast tumours.
To get the process started, the teachers choose a selection of recent primary research and review articles covering the field of study.
The synthetic index (SI) was obtained from a selection of 20 primary care process and outcomes indicators developed by CatSalut (Catalan Health Service).
A random selection of genes was PCR amplified from human umbilical vein endothelial cells (HUVECs), human dermal micro-vascular endothelial cells (HDMECs) and a selection of normal primary, non-endothelial isolates; human lung fibroblasts (MRC-5), human bronchial epithelial cells (HBEC), adult human epidermal keratinocytes, peripheral blood lymphocytes and hepatocytes.
His collected papers were donated to King's College in 1971, where they are still available to researchers and contain a wide selection of primary materials concerning the warfare of the early twentieth century.
