Hence a range is assigned to class 1 (0–20) indicating clean and class 2 (20 50) indicating slight pollution in this study.
Therefore, the slight alterations observed in this study concerning those parameters, particularly those in the control groups, might be associated to biological variation related to the nature and management of the animals in the different research vivaria.
In general, the above results suggest that slight thinning, as executed in this study, does not affect appreciation of the environment and its restorative properties, except for a few indices.
Knowledge questionnaire: This was a new 12-item questionnaire derived from the literature, patient and professional consultation, for the purpose of this study and has been tested as described in a previous study resulting in slight changes before usage in this study (Hutchison et al, 2007).
The slight right-side predominance seen in this study is consistent with a number of studies which have also shown an increased tendency for right side laterality, albeit with varying degrees of significance [6, 8, 13, 15, 16].
In this study slight discrepancies between used methods may exist, caused by the fact that the probes used in FISH and Southern blot analysis are not overlapping and thus cover another genomic region, although all map to the 19q12 13.2 region.
When comparing this study to other studies, however, it is important to note that amplification of residual confounding could have potentially enhanced, to at least a slight degree, an apparent bias in this study against observing a protective association between lithium treatment and suicide death.
Moreover, it is found that the considered parameters in this study have slight effects on the electrical energy efficiency of the PVT system.
However, in this study a slight but significant increase in perfusion was found after 1 week.
