The phrase "attributed to difficulties of" is correct and usable in written English.
It can be used when explaining the reasons or causes behind a particular issue or situation, specifically relating to challenges or obstacles.
Example: "The project's delay was attributed to difficulties of resource allocation and scheduling conflicts."
Alternatives: "due to challenges of" or "resulting from issues of".
This lack of knowledge was attributed to difficulties in performing self-monitoring of blood glucose (SMBG) for financial reasons, and some claimed that their HCPs did not inform them about their glycaemic levels and target.
Failure is attributed to difficulties in achieving the uniform distribution of viral vectors in the tumor and in the sufficient transduction of GBM cells.
In the present study, nonparticipation is mainly attributed to difficulties in contacting patients (60.5% out of all nonparticipants).
But we also observe that peaks of low intensity show less mass accuracy than those with high intensity, which can be attributed to the difficulties of separating a peak of low intensity from the background noise.
In particular, there were challenges of benefit delay, attributed to the difficulties of obtaining a National Insurance number (Pattullo 2000).
These disappointing results are at least partly attributed to the difficulties of improving environmental performance under the conditions of structural poverty and in situations where the local community is highly dependent on natural resources.
The low value of the effective self-diffusion coefficient along the lateral facets determined with the aid of our model (3.2 ± 0.2 × 10−17 m2 s−1) was attributed to the difficulties of step nucleation on atomically flat facets.
His loss was widely attributed to the difficulties of winning a Republican primary with a Hispanic surname; 10 years later, the Republican voters who tossed Justice Medina also supported Ted Cruz for the United States Senate.
As it turns out, that can be attributed to the difficulties of intellectual properties and broadcast rights.
As indicated by almost all of the visited farmers and agricultural extension workers, the main reason for the untimely planting of seeds was attributed to the difficulty of accessing the required seeds at the right time of planting.
