Sentence examples for references of selected from inspiring English sources

A manual search among references of selected articles and reviews was also performed (MM).

A manual search among references of selected articles and reviews was also performed (PR and RO).

The references of selected studies were also perused for articles that may have been missed via the electronic search.

Materials and methods: We performed a literature review in the databases MEDLINE, LILACS and SciELO, covering the years 1980 to 2008, using the descriptors: "asthma" and "posture" and its correspondents in Portuguese; "asthma" and "spinal" and its correspondents in Portuguese, besides the manual search in the references of selected articles.

We reviewed titles and abstracts of original studies retrieved by the search, full text and references of selected articles, and text and references of relevant review articles published prior to the April 2007 (Figure 1).

We also reviewed references of selected publications.

Finally, we included additional literature identified by manual review of references lists of selected articles.

The reference lists of selected articles and reference lists of other systematic reviews were screened by two independent authors to identify all relevant articles for potential study selection.

Additionally, using the names of researchers authoring relevant studies, a "snowball search" was used by screening the reference lists of selected articles for pertinent references.

Reference lists of selected articles were also searched for relevant references.

Reference lists of selected articles were reviewed and citation checks carried out to identify further potentially relevant studies.