Because the elderly in such studies typically have been vaccinated against influenza before enrollment, a confounding of effects occurs between age, and previous exposures, as a potential extrinsic reason for immunosenescence.
Although the general EMA biosimilar guidelines state that RCTs for efficacy are usually required, the EMA insulin-specific guideline states that there is no anticipated need for specific efficacy RCTs because end points used in such studies, usually level of hemoglobin A1c (Hbare), are not considered sensitive enough for the purpose of showing biosimilarity of two insulins.
Many veterinary centers are in a position to take part in such studies because they already offer — and many pet owners are willing to pay for — therapies once reserved for people.
Boundary integral techniques are a popular choice in such studies because they reduce the dimension of the problem by one.
However, regolith thickness is often ignored in such studies because of its presumed difficulty of mapping in many terrains.
There are inaccuracies in retrospective dose allocations in such studies because radiotherapy causes breast shrinkage, leading to changes in breast shape of treated women over time.
However, this is very difficult to achieve in such studies because there is a high rate of combinations between races in the country.
Interpretation of results from epidemiologic studies must proceed cautiously because of the complexities inherent in such studies: cross-sectional epidemiologic studies are not analogous to toxicologic experiments, and data from single studies cannot be interpreted in isolation.
Curiously, these considerations have not been previously accounted for with respect to Hox cluster duplication or gene expression studies, even though paddlefish are often included in such studies because of their importance as a basal ray-finned fish representative.
Furthermore, GFR or creatinine clearance should not be used as the early primary end-point in such studies, because of the furosemide-induced pharmacological activation of the tubuloglomerular feedback mechanism, which will per se decrease GFR.
