(1) Change the abstract's display to CITATION
(2) The MeSH terms will appear below the abstract. (If the article was recently published, the MeSH terms may not have been assigned yet, but will be assigned shortly after publication.)
(3) If you are not sure what a MeSH term means, you can click on the MeSH term to see its definition. Select the "MeSH" that appears in a pop-up box. You will be taken to the MeSH database to see the definition.