Search-related Areas on the MeSH Browser Home Page

7. Search Option Radio Buttons. Searches may be restricted by choosing one of the radio buttons:

• All Terms includes Main Heading (Descriptor) Terms, Qualifier Terms, and Supplementary Concept Record Terms (SCR)
  
  • Main Heading (Descriptor)Terms includes Preferred Terms, Entry Terms, Entry Versions, and Permuted Terms found in Descriptor Records
    
  • Qualifiers Terms includes Preferred Terms, Entry Terms, and Abbreviations found in Qualifier Records
    
  • Supplementary Concept Record Terms includes Preferred Terms, Entry Terms, and N1 Terms found in Supplementary Concept Records
• MeSH Unique ID includes exact MeSH unique identifier
  
• Search in all Supplementary Concept Record Fields
  
  • Heading Mapped to includes associated Main Heading(s) in the Heading Mapped-to field of the SCR
    
  • Indexing Information includes Main Heading(s) associated with the substance which should be considered for coordination in indexing.
• Pharmacological Action includes Main Heading(s) in the Pharmacological Action field of a drug or chemical record
  
• Search Related Registry and CAS Registry/EC Number/UNII Code (RN)
  
  • Related Registry Search includes values for concepts which do not have their own Descriptor or SCR
    
  • CAS Registry/EC Number/UNII Code includes numbers from Chemical Abstracts Service, Enzyme Commission or FDA Substance Registration System Unique Identifier
• Search in all Free Text Fields
  
  • Annotation includes free-text information for indexers and catalogers concerning the use of the Descriptor or Qualifier record
    
  • ScopeNote includes free-text narrative giving the scope and meaning of a concept
    
  • SCR Note includes free-text narrative in the Supplementary Concept Record