The phrase "a number of frequent" is not correct and does not convey a clear meaning in written English.
It is typically used when referring to multiple occurrences or instances of something that happens often, but the combination is awkward and unclear.
Example: "There are a number of frequent issues that need to be addressed in the report."
Alternatives: "several common" or "many recurring".
One large consecutive series by Christo et al. reviewed records of 361 corneal transplant grafts and reported a number of frequent suture-related complications following penetrating keratoplasty including: suture erosions (10.8%), sterile corneal infiltrates (9.4%), and loose sutures in need of surgical repair to prevent wound separation (8.3%) [1].
Radiohead have maintained a close relationship with a number of frequent collaborators since early in their career.
The highly polymorphic DRD4 gene has a number of frequent functional variants in the populations [ 88].
The IDEAS prescription chart at least in a simulated context significantly reduced a number of frequent prescribing errors including dosing errors and illegibility.
Using these procedural steps iteratively, we have identified a number of frequent and common subgraphs at each edge-level covering from 2-10 edge subgraphs.
Review of 40 completed prescription charts from one hospital demonstrated a number of frequent prescribing errors including illegibility, and difficulty in identifying prescribers.
Both are dropping out of a number of frequent-flier programs, in part because of the ever-growing expense of purchasing mileage from airlines.
For instance, it is well-documented that oseltamivir (the neuraminidase inhibitor currently used to treat and prevent influenza infections) frequently leads to nausea and a number of less frequent adverse effects such as hepatitis and skin reactions [9], [17].
With the availability of GWAs based DNA-Arrays, a number of more frequent variants affecting LDL-levels emerged [5], [6], [7], [35], [40].
Additionally, KS individuals might have a number of less frequent findings comprising visceral abnormalities and premature breast development in females.
This defect results in a broad and highly variable clinical phenotype consisting of predisposition to bone marrow failure and malignancy, a triad of mucocutaneous features, and a number of less frequent manifestations such as pulmonary fibrosis and liver disease [ 3].
