The phrase "although there were certain" is correct and usable in written English.
It can be used to introduce a contrast or exception in a statement, often followed by specific details or examples.
Example: "Although there were certain challenges during the project, the team managed to meet the deadline successfully."
Alternatives: "even though there were some" or "despite the fact that there were certain".
In 2015, when an external assessor confirmed that Macchiarini had falsified test results, Karolinska University still expressed its support for the surgeon, saying that although there were "certain flaws" in his research, there was "nothing that can be considered scientific misconduct".
But although there were certain appalling details in the article, I was not.
Notably, the most similar regions tended to be large subcortical structures (e.g. thalamus, putamen), whose boundaries (and nomenclature) are more well-determined than in the cerebral cortex, where delineations are more arbitrary, although there were certain exceptions.
Although there were certain problems at the beginning, they were overcome together.
Although there were certain ambiguities at the four-digit resolution, at the two-digit resolution, accuracy remained at 100%.
Overall, the rate matrices remain relatively homogeneous and unskewed across different partitions of the data set, although there were certain partitions exhibiting differences in particular rate parameters.
In contrast, British Airways will carry golf bags at no extra charge, although there are certain weight and size restrictions.
Although there are certain differences, it gives equal weight to the instrumental and expressive facets of design objects or products in a complementary relationship.
Conclusion: The otoacoustic emissions testing protocol should be selected by screening programs concerned with cost and cost-effectiveness, although there are certain caveats to consider.
Although there are certain risks associated with AP medications (movement symptoms, metabolic side effects, etc)., this potential effect on impulsivity could be an added benefit for certain patients.
Most articles are required by British law to be hallmarked before sale, although there are certain exemptions (e.g., gold rings other than mourning or wedding rings).
