Medical Subject Headings or MeSH for the second concept:

We now have the first part of our search strategy: references to articles on Sickle Cell Anemia.

The second concept in our search strategy is Penicillins.

We need to repeat the process and retrieve citations from MEDLINE on this drug.

Exercise:

1. View the sample screen

2. Type in the term penicillin in the box labeled "Enter Keyword or phrase"

3. Click on Perform Search button