Therefore, no information regarding the inter-reader reliability are available; and moreover, we may only hypothesise that other software packages, which we did not explore but that are commercially available, may produce further differences between measurements.
This is problematic because inclusion of SNPs that deviate from HWE may produce spurious associations between haplotypes and lung function [ 37, 38].
Keatinge and Donaldson (2001) suggested that prolonged cold weather with less wind and rain may produce false associations between mortality and certain air pollutants.
Life-cycle models of reproductive behavior indicate that variations in household income or expenditures resulting from the birth of children may produce an imbalanced ratio between "consumers" and "producers" in terms of household income or labor, resulting in economic stress and thereby necessitating fertility regulation (see, e.g., Alter 1988; Heckman and Walker 1990; Hotz et al. 1997).
Consequently, the endogeneity of the tax status may produce a spurious correlation between the leverage ratio and the marginal tax rate, making it difficult, if not virtually impossible, to draw causal inferences.
Due to the relevant number of degree of freedom and to the non-linear coupling of different phenomena, the mathematical modeling of combustion instabilities is computationally heavy and may produce an unsatisfactory correspondence between simulated and experimental data.
Alternatively, different cells and culture conditions may produce different expression ratios between Y RNAs and Ro60 or La proteins, resulting in different proportions of Y RNAs inside and outside of Ro RNPs.
We also observe a positive correlation between the skewness and inter-profile reproducibility (Additional file 2: Figure S7), suggesting more sensitive antibodies may produce more consistent profiles between the two technologies.
In both groups that did not undergo surgery (GA, GAA) male and female horses were included, which may have been a limitation of the study; since the scale was based on assessment of behaviour, sex differences in behaviour may produce differences in scores between groups at TC.
