1. Writing a literature review;Steward;Br J Occup Ther,2004
2. Needle in a haystack? Effective literature searching for research;Brettle;Radiography,2003
3. Conducting research literature reviews: from the internet to paper;Fink,2004
4. MeSH headings. US National Library of Medicine. http://www.nlm.nih.gov/mesh/ Accessed Feb 7th, 2008.
5. Introduction to research in the health sciences;Polgar,2000