While the use of a real-world case study enhances the ecological validity of the current research, this approach also precludes controlling potential confounding variables such as underlying trait anxiety, patients' beliefs about medications, level of exposure to Eltroxin-related media coverage and participation in thyroid support or discussion groups either online or face-to-face.
Most previous work in this area has focused on polymers or monolayers which preclude control of signal density and accessibility in the nanoscale filamentous environment of natural matrices.
This precludes adequate control of citrate flow and raises evident functional and safety issues.
Although this method has certain advantages from a policy perspective, it precludes adequate control for case mix.
Lastly, the occurrences of C. mildei and of C. pomonella were not related, indicating that the enhancement of C. mildei does not preclude a control of this major pest.
This is likely due to the good availability and widespread uptake of metformin, at least in high-income countries, precluding a control group.
A major religious holiday 9 days prior to the start of the vaccination campaign precluded using control windows prior to vaccination.
Piscivorous taxa, and others feeding on motile prey, had larger optic tecta and cerebellum compared to species feeding on mollusks or plants, while structures relating to taste were well developed in species feeding on benthos over muddy or sandy substrates [ 22], although the lack of detailed phylogenies at the time precluded any control for phylogenetic effects.
This genetic diversity not only affects viral epidemiology but it is also linked to the mechanisms used by the virus to escape the patients' natural humoral and cellular immune responses as well as antiretroviral drug's action, thus precluding viral control.
It is worth noting also that a simplified financing system does not preclude utilization controls, and that such controls might be employed in single payer systems while maintaining lower BIR costs.
