Although studies in migraine have only reported the STin2.9, STin2.10 and STin2.12 alleles, it still precludes employment of simple biological models at the allele or genotype level (additive, dominant, recessive) based on one degree of freedom (df) tests.
While the bilio-enteric and entero-enteric strictures can be addressed through minimally invasive endoscopic or radiographic means, management of a pancreaticojejunal anastomosis is challenging in that the altered anatomy of the post-pancreaticoduodenectomy reconstruction often precludes successful employment of such techniques.
Institutional and cultural barriers slow or even prevent faculty members from adopting teaching methods demonstrated to be beneficial, precluding widespread employment of effective instructional practices (Brownell and Tanner, 2012).
Similar to previous research in the area [ 21], the study was also unable to include a non-exposed group, due to the extent of the violence within the Quechua population in this region, which precluded the employment of techniques such as propensity scores to control for confounding variables.
I guess it is difficult to build a middle-class when its prospective members are not employable; when middle-class status doesn't preclude discrimination in employment.
The small numbers of deaths from liver and intestinal cancers, myeloma and nervous system diseases coupled with the lack of an exposure-response relationship with duration of employment preclude drawing definitive conclusions regarding PCB exposure and these causes of death.
Despite the limitations of such convenience sampling, the lack of employment data precluded the use of more representative sampling techniques.
While the current security environment in Afghanistan may not necessarily lend itself to employment of cluster munitions, the situation remains dynamic so that the United States cannot permanently preclude its use in the country.
These arrangements exist outside of formal employment relationships and preclude workers from important protections such as unemployment insurance [ 68, 69].
The occupation-based selection of the two high-risk groups precluded the use of an occupation- or employment-based measure of opportunity cost.
