Ovid Medline
Medical Subject Headings (MeSH) Part 1 – 3.29m
Medical Subject Headings (MeSH) Part 2 – 2.19m
Keyword Searching in Ovid Medline – 2.29m
Combining Search Terms in Ovid Medline – 2.0m
Applying Limits in Ovid Medline -1.07m
CINAHL
CINAHL Subject Headings - 5.25m
Boolean Operators - 1.40m
Keywords - 3m
Refining Searches - 2.57m
Saving Search Results - 3.30