Sentence examples for grey articles from inspiring English sources

Empirical articles achieving a minimum average score of 10 (of a possible 17) and non-empirical and grey articles scoring a minimum of 5 (of a possible 10; see Additional file 3 for quality rating sheets) were retained.

The grey article included in this section was in the low range for quality.

Quality assessment of additional peer-reviewed process evaluation studies, or grey literature articles, will not be undertaken, as these studies will be used primarily as contextual details in the realist synthesis.

A primary search of Cumulative Index to Nursing and Allied Health Literature (CINAHL), MEDLINE, EMBASE, PsycINFO, and a secondary search of grey literature and articles taken from references of included articles (from inception to July 2013).

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].

A systematic search of seven databases and the grey literature for articles published January 1989-February 2010 was undertaken.

Studies meeting the following criteria were included: (a) published studies, reviews or discussion papers addressing the review topics; (b) grey literature; (c) articles published in English language; (d) studies originating from Australia, New Zealand, the United Kingdom, Canada, USA, Europe, Japan, Brazil, South Pacific Nations, Thailand, Malaysia, and Myanmar.

We searched electronic databases and grey literature for articles on OF in low-resource countries published between January 1 , 1995 and November 16, 2014, and selected for inclusion 19 articles with original population-based OF incidence or prevalence data and 44 with reports of frequency of SB associated with OF.

Qualitative methods were used to collect data, including a review of the literature (published research, grey literature, newspaper articles and formal, institutional documents), as well as two sets of interviews with a total of 47 key informants and one focus group discussion.

A scoping design was chosen as it allowed assimilation of relevant but un-standardized and multiform sources of information, i.e. peer reviewed articles, grey literature (government reports, reports of consultants etc)., conference presentations and proceedings, informal discussions and relevant websites.

Peer-reviewed articles and grey literature were identified through six online databases.