The phrase "although the grades of" is correct and usable in written English.
It can be used when introducing a contrast or exception related to grades in a discussion or argument.
Example: "Although the grades of the students improved, their overall understanding of the material did not increase."
Alternatives: "even though the scores of" or "despite the marks of".
Although the grading of coins can be confusing, most United States coins sold in coin shops come with a certificate attesting to its grade from a reputable agent.
Previous echo reports (including diastolic dysfunction) when available were acquired, although the grading of diastolic dysfunction for these studies was not based on the 2016 ASE/EACI guidelines.
However, although the grade of interrelation remains vague, all factors influencing LOS are relevant as independent factors.
All of these patients developed a worsening of their anaemia following treatment, although the grade of the anaemia did not alter in severity according to the NCI CTCAE criteria.
Although the grade of the tumour was low, however stage was high as there was metastasis in the regional lymph nodes.
Although the grade of gastrointestinal adverse events was usually mild, these events occurred after switching from sevelamer hydrochloride, indicating the importance of monitoring hemodialysis patients, even those on BXL, for gastrointestinal adverse events.
In addition, we observed survival differences by the two histological subtypes: although the grading of urothelial carcinoma was significantly worse than in SCC (Supplementary Table S1), it was more likely to die because of a SCC than of an urothelial carcinoma of the bladder (Supplementary Table S3, HR 2.48).
The malignant biological behavior of breast cancer remains obscure on diagnostic images, although understanding the grade of such malignancy is important for selecting appropriate treatment.
There is also an association, although less strong, between the grade of initial DCIS and the grade of subsequent invasive recurrences (κ=0.241).
Although the progression of the grade of differentiation did not appear as a sequential process, identical allelic patterns were found in several markers.
