The phrase "are required for validation" is correct and usable in written English.
You can use it when discussing necessary conditions or elements needed to confirm or authenticate something.
Example: "The following documents are required for validation of your application: proof of identity and residency."
Alternatives: "are necessary for verification" or "are essential for confirmation."
Further studies are required for validation and refinement of its use.
Although this pilot study suggests it has diagnostic potential in the automated classification of melanoma from non-melanoma, prospective studies are required for validation.
Larger longitudinal studies are required for validation of our results.
Nevertheless larger samples are required for validation and even larger ones to allow for a stratified analysis.
However, future studies with maize populations with very low LD or alternative approaches are required for validation.
Although further investigations are required for validation of the role of SULF2 in oesophageal cancer, our results raise the possibility that SULF2 could be a therapeutic target.
An important experimental consideration therefore is to ensure that sufficient material is archived to allow the required testing that may be required for validation.
While the analysis of the current data set provides preliminary evidence for this theory, comparison to non-accident reports will be required for validation.
In order to accurately assess the small-scale differences between different interface capturing methods, a comprehensive experimental dataset is required for validation, including detailed information describing the interface deformation, and transient development of the stage by stage shape data.
These data were used to derive the subscriber's trajectory, whereas the recorded data was required for validation and quantification.
With two replicas, each reduce task is indispensable for the MapReduce job to finish because a quorum of two identical results is required for validation.
