Sentence examples for articles of the reference from inspiring English sources

Next, we collected potential search terms both from these articles and based on our own expertise and tested how well these search terms and combinations of terms were able to identify the articles of the reference set developed in step 1.

Hand searches of journal articles and of the reference lists from relevant publications were also performed to ensure, as far as practically possible, that all appropriate studies were considered for inclusion.

Table 1 Number of studies reached via seven literature review articles Review article # of articles in the reference list Review article # of articles in the reference list Altay and Green [1] 151 de la Torre et al. [9] 58 Anaya-Arenas et al. [8] 73 Galindo and Batta [4] 69 Apte [7] 168 Natarajarathinam et al. [6] 133 Caunhye et al. [5] 74    .

This database includes randomised trials from a wide range of sources (including literature searches from bibliographic databases, hand searches undertaken as part of systematic reviews, and retrieval of articles from the reference lists of other articles obtained by both these methods).

However, we had not expected the large number of articles in the reference set published in Spine with 167 out of the 225 articles (74%).

A search of Finnish language studies would have further strengthened our strategy but to counter a potential oversight of relevant articles, the reference lists of the included studies were also searched.

To detect additional relevant publications, we used the PubMed option of "related articles" and checked the reference lists of the original and review articles.

We identified another three articles from the reference lists of the included articles.

We also considered articles from the reference lists of the studies found to be relevant, as well as literature known, by the authors, to be relevant.

Articles in the reference lists of the retrieved articles were also reviewed to identify additional studies.

The literature search was further strengthened by searching relevant articles from the reference list of retrieved articles.