User:CFCF/sandbox/38

When looking for citations for medical statements it

important to avoid bias

This

Search engines
Green means that the database is free to use. Yellow is for subscription databases that allow limited functionality without subscription. Red is for databases that allow no access unless you have a subscription. This color scheme bears no connection to the percieved quality of the databases.

Problematic sites
The following are a list of resources that have flaws or issues that make them unsuitable.... Wikipedia does not disallow their use, but if at all possible to avoid they are discouraged.