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(he Nationa! Networ of &i#raries of 'edicine NN/&'% anoutreach ro"ra+ of N&'% rovides assistance and trainin"

nationwide. (o find a !oca! !i#rary% !ease ca!! 00-,,-7657 or "otohttp://nnlm.gov/members/

Start in the MeSH "atabase

%ccess MeSH in ubMed from the drop=down

menu 0' clic! on MeSH Databasefrom theubMed homepage.

. -hec! the boxes of the desired MeSH

terms, subheadings and/or restrictions

5. Select either %+#, 0' or +0" from the

drop=down menu, then clic! the Add to

search builderbutton

?. -ontinue to search for and add terms

@. .OT,Ma!e any necessary changes to the

parentheses and terms in the search box toclarify the search

A. Bhen finished, clic! Search PubMed

%lternatively do complex searches in pieces.Send groups of terms separately to ubMed and

Search History under the %dvanced search lin!to combine terms.

The MeSH Hierarch&

MeSH terms are arranged hierarchically by

subject categories with more specific

)narrower terms arranged beneath broader

terms. ubMed automatically explodes searches

to include all narrower terms.

%n unrestricted search for neoplasms willinclude articles which focus on the main term

)neoplasms, but also focus only on a narrower

terms )e.g. urachal cyst.

-hec!Do not include MeSH terms +oundbelo$ this term in the MeSH hierarch/ for

articles focusing only on the main term andeliminating those focusing on narrower terms.

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-linical Dueries ut the MeSH term into the

-linical Dueries search box where the search

may be further refined

+3M MeSH :rowser Show the MeSH

browser #escriptor #ata for this term

including Scope +ote and %llowableDualifiers )subheadings