Databases Searched

Inclusion Criteria

Exclusion Criteria

Ÿ Medline/Pubmed

Ÿ PsycINFO

Ÿ Google Scholar

Ÿ British Nursing Index

Ÿ ProQuest

Ÿ Elsevier

Ÿ EBSCOhost

Ÿ (CINAHL) Plus

Ÿ Publications in English and Arabic languages

Ÿ Published 2000-2015

Ÿ Relevance to the study question

Ÿ Any study design

Ÿ Publications in languages other than English and Arabic

Ÿ Publications older than 2000

Ÿ Editorials and commentaries