Tenoke comments on Googling is the first step. Consider adding scholarly searches to your arsenal.

[Tenoke]

You often don’t have access to the full paper.

Also:

if you are unsure about the quality of the study, then you should also look at the method section to identify it’s limitations.3

and

3. If you want to get a better and more accurate view on the topic in question you should read the full paper. The heuristic of mainly focusing on abstracts is cost-effective but it invariably results in a loss of information.