The closest to what you typed is highlighted. Use the scroll bar to move up and down the thesaurus. Click on the term you wish to select. If you do not wish to view the Term Information , click on the Search Now button. Choose your Search Options from the menu on the right hand side of the screen.
Trees are hierarchical displays of immediately broader and narrower terms.
Select your Search Options and click on the Search Now button. After you have clicked on the Search Now button, a menu appears containing a list of subheadings which can be applied to that term. Subheadings are usually attached to MeSH headings to describe the topic more specifically. If you want a general search, select all subheadings. Do not choose none .