Sentence examples for checks of reference from inspiring English sources

Data sources Searches of electronic databases from inception until December 2013, checks of reference lists, manual searches of recent issues of relevant journals, and contact with experts.

Hand searching journals, and checking of reference lists of retrieved papers increases retrieval of relevant papers.

Searches of electronic databases 1950 to November 2013, checking of reference lists, hand searching of journals, and contact with experts.

This was complemented by other databases, relevant conference proceedings, and hand check of reference lists of reviews and included RCT.

The initial search was performed on October 29, 2014 using the Medline database, with cross-checking of reference lists for inclusion.

With the computer search and manual cross-checking of reference lists, 65 abstracts (26 English and 39 Chinese) were retrieved.

Four papers were added after cross-checking of reference lists, and 1 paper was added because it was known to the authors.

We identified 4338 citations; we obtained 203 articles for full text evaluation and identified another five studies through manual checking of reference lists.

To supplement the database search, a planned hand search of grey literature for articles on PubMed and checking of reference lists of identified articles for relevant studies will be conducted [ 41].

Strengths of the review include the thoroughness of the literature search which included seven databases, two reviewers, a detailed search-strategy compiled with a team of obstetricians and epidemiologists and rigorous cross-checking of reference lists.

Extensive cross-checking of references was performed.