A system error has occurred (obviously this should never happen).
The problem is somewhere around the highlighted text.
Highlighted text is not a valid MESH Term.
* Browse MESH (Esc T) to locate and search for the proper entry.
* To fix spelling errors position the cursor using the arrow keys then use Ins or Del to fix the problem.
Highlighted text is not a valid MESH Subheading.
* Use the Thesaurus (Esc T) to search using the subheadings allowed for your term.
* To fix spelling errors position the cursor using the arrow keys then use Ins or Del to fix the problem.
There is no memory left in the Search History to create new Searches.
Use CLEAR (Esc-C) to delete some searches.
The target of a Thesaurus Search is invalid.
Try using parenthesis to solve the problem.
No tree in the tree index was found for this term.
This should never happen.
Please type a MeSH heading or a subject keyword (such as "lymphocytes") then press Enter (─┘). Press F1 for Help. Press F3 for information on MEDLINE fields (including MeSH headings). Press Esc for the Command Menu.
Your computer does not have enough memory available to display this term. Try searching from the command line (type "Explode your term / subheadings")
