 How to conduct a search using mesh subject headings in PubMed. In this video, we'll show you how to search in PubMed by performing an example search in the database. First, we'll open the PubMed database. This is what you'll see when you open the database. Now, click Mesh Database. This will allow you to search using mesh subject headings. Type your search terms into the search box. We'll search for privacy. And click Search. Your search results show a list of mesh headings related to your search term. Each comes with a brief definition to help you know which term you want to use. Select a mesh heading from the list. This could be the same term that you originally searched, or you could see one that has a better option. So, for example, after reading the definitions, we could decide that we actually want to use confidentiality. Here we see the mesh record. Double-check the definition at the top of the record to make sure that this is the appropriate mesh heading. You'll see a list of subheadings. If you see one or more that are particularly relevant to your search, you can search them. Be aware that this would limit your search results. Because of this, I suggest you start by leaving them all unchecked. Below the subheadings, you'll see a box for Restrict to Mesh Major Topic. Checking this box will give you fewer but potentially more relevant search results by limiting your search to articles where your mesh heading has been flagged as a major topic, meaning it's essentially important to the article. Let's go ahead and select this. Scroll down to see the Tree View. In this case, there are five Trees, which means that this subject heading is categorized in five different places. You can see broader and narrower terms and select one of them if they would be more appropriate to your search. To run your search, go up to PubMed Search Builder in the top right. Click Add to Search Builder. You'll see your search term appear in the box. Now click Search PubMed to run the search. By default, in addition to the mesh heading you've selected, PubMed also searches more specific terms beneath that heading in the tree structure. Your search results will show all the articles that have confidentiality as a major mesh heading. As you can see, that's quite a lot. To focus your search to fewer but more relevant results, try adding additional terms, either as subject headings or as keywords. I'll go back and add some of the subheadings that we saw earlier. You can also try adding filters to your search, which we'll cover in a later module.