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TUH EBP & Research Council

How to Collect Current Research on Your Topic

You need:

  • A search strategy
  • Good search terms
  • A list of databases you will use

Types of Sources

As you get ready to search, you should also consider what types of sources are most relevant to your topic. What does “the literature” consist of? 

  • Peer-reviewed articles: Usually, the overwhelming majority of the literature you review will be scholarly articles, published in peer reviewed journals
  • Dissertations
  • Primary Sources: Depending on your area of study, you may also include primary sources. In medicine, this may be data or images like scans.
  • Books and reference materials (such as background information on a disease that you find in UptoDate or Dynamed) may be helpful in getting a handle on a topic and pointing you in the direction of scholarly sources.

Databases by Research Topic

More Databases by Topic

Crafting a Search Strategy

  • Brainstorm search terms and synonyms
  • Test in databases: which give you the most relevant results?
  • Identify subject vocabulary and terms: Look at the articles you've found in your test runs, and see how the authors are describing your topic. What words are they using? What seems to be the "official" vocabulary around your subject?  Use these subject terms in your future searches.
  • Search in multiple databases: to get a well-rounded search and make sure you're fully capturing the research landscape around your topic, search in a variety of databases (some broad and multidisciplinary, some subject-specific)

Example

Sample Question:

In patients of color, does the use of glycolic acid peels reduce the severity of melasma?

You'll want to pull out the phrases that could be potential search terms. The highlighted phrases below demonstrate this. 

In patients of color, does the use of glycolic acid peels reduce the severity of melasma?

Synonyms for these words and phrases

Original term Patients of Color Glycolic Acid Peels Melasma
Synonyms Skin of color Glycolates Chloasma
  Brown skin Chemical peels Hyperpigmentation
  Black skin   Mask of pregnancy
  Dark skin    
  African American patients    
  Latinx patients    

 

Simple Search Example

To start you can do a simple search of any database, PubMed is a good place to start. 

Simple search example: Skin of color glycolic acid melasma

You would just copy and paste this right into the general search bar.

Adding Subject Headings

Subject headings are the official subjects assigned to articles within databases. They both explain the content of the article and help you find the article.


You can use the MeSH term database on PubMed to find more search terms related to your topic. 

Here are some MeSH terms related to our search terms chemical exfoliation and melasma from our previous example. 

MeSH terms:

Chemexfoliation

Melanosis*/ diagnosis

Melanosis*/ therapy

You can add these terms into your searches to find more articles!

Advanced Search Example

For more advanced searches you will use synonyms with the word OR between them. Or gets you More! You are telling the database that you want articles that contain at least one of those phrases in your search. 

(skin of color OR skin pigmentation[Mesh] OR skin pigmentation OR dark skin tone OR African Americans OR Latinx)

Then you'll string two different ideas together with the word AND. This means that we want articles that contain at least one of the phrases from the string of terms AND at least one of the phrases from the following strings of terms. 

(skin of color OR skin pigmentation[Mesh] OR skin pigmentation OR dark skin tone OR African Americans OR Latinx)

AND

(glycolic acid OR glycolic acid peel OR glycolates OR chemical peels OR chemexfoliation[Mesh] OR chemexfoliation)

AND

(melasma OR Chloasma OR Hyperpigmentation OR melanosis[Mesh] OR melanosis)

You can also see that I included a MeSH heading. I want articles that are tagged with that subject heading. But newer articles can take up to one year to get their MeSH headings tagged, so you also want to enter that search term as just a keyword as well.

 

Simple Search Vs. Advanced Search Comparison

Simple Search:

Skin of color glycolic acid melasma

Total results in PubMed: 4

Advanced Search:

(skin of color OR skin pigmentation[Mesh] OR skin pigmentation OR dark skin tone OR african Americans OR Latinx) AND (glycolic acid OR glycolic acid peel OR glycolates OR chemical peels OR chemexfoliation) AND (melasma OR Chloasma OR Hyperpigmentation OR melanosis[Mesh] OR melanosis)

Total results in PubMed: 142

Because we used synonyms and MeSH terms we got more results!