Difficulties with laboratory diagnosis probably further contribute to the underestimation of the incidence.
The lower sensitivity to detect SNPs discussed previously also contributes to the underestimation of β.
Furthermore, streaming of red blood cell velocity in the centre of the vessel potentially contributes to the underestimation of microvessel diameter measurements in OPS imaging.
Histological diagnosis of biopsy specimens cannot definitively identify adenomas with aggressive potential because sampling errors may contribute to the underestimation of tumour grade or depth of invasion.
This, however, might contribute to the underestimation of OSAS-associated perioperative complications when comparing individuals with a previous diagnosis of OSAS with patients without such a diagnosis.
Although this was not a specific objective, these aspects may introduce a bias and are likely to contribute to the underestimation of the true burden of effect.
In addition, the incorrect reporting of authors' nationality and affiliation, observed in a few papers in the present study, may further contribute to underestimation of Angolan-authored publications.
Phenylalanine flux was estimated from kel, Phe concentration in plasma, and Phe distribution volume, so imprecision in any one of these variables could contribute to the underestimation.
In addition, misinference of up changes in the m lineage following pu changes in ms (resulting in ECC_pupppp) as pu changes in s will further contribute to overestimation of pu in m and underestimation of up in s.
2 31 These qualitative studies suggest that defining smoking outdoors might be a somewhat varied and fluctuating category, possibly contributing to further underestimation of home second-hand smoke exposure.
The case control studies contributing to the IARC results may also have resulted in an underestimation of the relative risk because of healthy screenee bias and frequency bias.
