Table 1.

Breakdown of the number of hits excluded for each exclusion criteria

Exclusion reason	# of hits excluded
Duplicate	428
Broken link	35
Fundraising/advertising/campaigns	13
For professionals/primary journal articles	99
Blogs/discussion boards	78
Contains links only	14
Contains only links to other publications	35
Purely news stories	154
Search engine/directories	0
Unrelated/not providing information	199
Requires subscription	5
Not English	3
Not a website (directs to pdf, YouTube video, Word document etc.)	52
Total excluded	1115