In quantitative reviews, criteria are generally narrow [ 4], with only certain study designs eligible for inclusion e.g. randomised controlled trials.
However, most previous works adopted regional analysis, studying only certain parts of the brain, such as the normal appearing WM (NAWM and GMM (NAGM) [ 31], or the cerebellum [ 32], thalamus [ 33], and corpus callosum [ 34, 35].
A monograph is expected to cover all the aspects of the study concerned in detail (average word count approx. 50 000 words); in contrast, journal articles are much shorter (approximately 3000 words), less detailed and cover only certain aspects of the study.
Data collection: Although certain studies had only one means to collect their data, several studies used more than one method.
False-positive or false-negative associations may occur if studies include only certain subsets of patients.
Firstly, most studies included in our review detected most enteroviruses by using PCR primers targeting the highly conserved 5′ untranslated region of the enterovirus genome, whereas serological studies examined only certain serotypes.
The situation in clinical research is not static and this study covers only certain time-period (up to 2011).
As for the human, the induced peritoneal inflammation in this study represents only certain aspects of the inflammatory events observed in endometriosis.
In this work, only certain methodologies were selected to depict a global overview of the characterization study.
