The above-mentioned variability in NAA levels constitutes the main limitation of this technique.
Finally, in addition to the genes mentioned above, variability in the presence of other virulence genes also supports the notion of a mixed STEC population.
As previously mentioned, the variability of nitrate concentrations in Podravina was also recorded in some wells close to pollution.
Few publications mention inter-observer variability in diagnosing levator defects.
I also want to mention the great variability in possible indoor sources of PM.
Nonetheless, as mentioned above, the enormous variability in the number of activities and proposed evaluation indicators minimizes this bias and raises their potential usefulness for AIDS-NGOs located in other geographical areas.
The relative results do show fluctuations in the response from day to day; however, as previously mentioned, we believe the variability in the relative readings between days is a result of polydispersity of the spheres in both the size and poration.
Other parameters that could have caused variability were not mentioned in all studies, such as food composition, cage material (chemical composition and emission of fumes may vary), cage cleaning (chemical residue may vary), lighting, temperature, whether standard and EE cages were housed in the same room, bedding composition, and microbiota detected in each animal facility.
Reproducibility of the analytical process, in addition to the previously mentioned sources of analytical variability, incorporated variation in RNA input levels (i.e. 5 ng, 10 ng and 20 ng inputs).
It is possible that cultivar variability in the above mentioned downstream processes of ABA contributed to the metabolic differences measured between the cultivars.
All the above mentioned factors imply great inter-individual variability in pharmacokinetics, complicating accurate prediction of serum concentrations in ICU patients, making evident the need of a frequent dosage of VSC in order to make the daily dose of this antibiotics adequate [ 5].
