This study was restricted to 1417 documents extracted from Scopus database, having affiliation addresses belonging to the Arab world, and bearing article titles with terms related to groundwater.
It is to be noted that, since this was a preliminary attempt to understand the effect of gradation of sand clearly, this study was restricted to use of individual grades of sand and not in combination.
While the sample included in this study was restricted to a single hospital the inferences are generalizable to most urban centers in the US.
Since this study was restricted to behavioural data, the precise brain mechanisms underlying the observed pattern of results must remain hypothetical.
Due to budget constraints, this study was restricted to males.
However, this study was restricted to medical patients.
In addition, this study was restricted to men.
This study was restricted to national rates of suicide.
This study was restricted to laboratory, inpatient, and outpatient data recorded within 1 coordinated military system.
The focus of this study was restricted to medical care in primary and acute hospital settings.
This study was restricted to a self-selected sample of physicians receiving feedback.
