The phrase "a lack of additional" is correct and usable in written English.
It can be used when discussing the absence of extra or supplementary items, information, or resources.
Example: "The project was delayed due to a lack of additional funding."
Alternatives: "an absence of extra" or "a deficiency of supplementary".
Mr. Campbell and other passengers were worried over what seemed a lack of additional security on the trains.
Whether the Blues would sanction such a move is unclear, particular with a lack of additional cover should injuries strike.
In intensive farm management the numbers of these beneficial arthropod species may be constrained by a lack of additional prey, floral resources or suitable overwintering sites.
The unexplained variance is attributed to differences in experimental set-ups and measuring errors which could not be explicitly accounted for due to a lack of additional data.
However, there is a lack of additional hydrological information (based on dense sampling) including the recharge rate and residence time of the groundwater for its management.
The patient's postoperative course was uneventful, and she has remained recurrence-free for 27 months, despite a lack of additional treatment.
Genes with extremely low read counts were eliminated from further analysis due to a lack of reproducibility (Additional file 1: Figure S1).
The remaining ~6,850 sorghum gene models predicted from the genome sequence are considered low confidence [ 43] due to a lack of any additional support.
Because SOFA scores were correlated with the other predictor variables in the regression model, this lack of complete data might have contributed to a lack of significant additional predictive power of this variable in the final overall regression model.
Gene expression was empirically determined by agarose gel electrophoresis of RT-PCR products; amplicons were evidence for gene expression while negative results indicated a lack of expression (Additional File 1).
Out of 251 working primer pairs, 182 amplified the expected size of amplicons, 41 yielded PCR products larger than expected, revealing that an intron is inside the amplicons, and the amplified products of the remaining 28 primer pairs were smaller than expected, suggesting the occurrence of deletion within the genomic sequences or a lack of specificity (Additional File 1).
