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  1. From the CSSI Data Portal home page, click the Search button or select Investigations > Search.
    Search button

    The Search Investigations page appears.
    Search Investigations
  2. In the Search box, enter a keyword or phrase. Search results appear immediately, using the default context of Investigations.
  3. To change the context, from the Search for list, select Studies or Assays.
  4. Under Search for related terms, select Ontology for Biomedical Investigations, NCI Thesaurus, or both. By default, both are selected but if you change the selection, the search results refresh.
  5. Under Include, select either Synonyms Only or Synonyms and Subclasses.
    • Synonyms include terms in an ontology that are closely related to the keyword or phrase you entered.
    • Subclasses are lower categories associated with the ontology term.

    If any ontological synonyms or subclasses of the keyword you selected exist in the CSSI DCC Portal, those terms appear in the Synonyms or Subclasses box, respectively. You can click any of those terms and refresh the search results to show only those investigations, studies, or assays that contain those terms.

    In the following example, the keyword is neoplasm and its synonym found in one or both of the selected ontologies is tumor. Subclasses of tumor that appear in the search results are all, cc, hcc, r1, and r2.
    Search Investigations page showing neoplasm as the keyword and tumor as the synonym, along with several subclasses
    To expand your ontological search to include all synonyms and subclasses, even if they do not appear in the search results, click the click here link. 
    Search Investigations page showing the keyword of neoplasm and all synonyms and subclasses, even if not in the search results

    Info

    Synonyms and subclasses of the keyword that have search results have a dark outline. Synonyms and subclasses of the keyword that do not have search results but still exist in the ontology/ies have a dotted outline.

  6. Click any investigation name, study name, or assay filename to explore the data further.

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