Here you'll see how I searched for asthma rates and air quality, but I will use the Advanced Search page to combine my terms rather than putting everything into the search builder at once.
Note: The videos in this tutorial are best when viewed in full screen.
This is the end of the tutorial. The last page includes options for getting further help from Drexel Libraries.
Come back for a MeSH refresher the next time you do a PubMed search!