This implies that each of the twenty-one articles [ 35- 55] has variations in relationship to the others concerning year of publication, modality used, journals (with the aim of using well known relevant journals, commonly read by physiotherapists), and countries.
Twenty- one scientific articles, found in PubMed, strategically chosen according to year of publication (2001 2009), modality, journals and country, were investigated.
In a previous meta-analysis [ 43], Seabra and colleagues explored heterogeneity but found no association between effect estimate and date of publication, RRT modality, sample size, duration of study follow-up, and study quality.
To provide evidence-based recommendations for diabetic macular edema (DME) management based on updated information from publications on DME treatment modalities.
There was no statistically significant association between modality and publication (X2 = 9.3, p = 0.23).
This may occur if researchers do not provide sufficient detail in the primary publications on the exact modalities of the reference test procedures.
Because of publication bias, trials on CAM modalities may not be found on routine literature searches.
At ECR 2010, the author's country of origin, subspecialty and study design were significantly associated with subsequent publication, whilst author collaboration and modality were not.
The selection was not restricted regarding treatment modality, study design, publication language, or year of publication.
Recent publications illustrated importance of imaging modalities in diagnosis of this rare disease [ 11, 12].
