|  | Ovid
Technologies, Inc. 2001 CANCERLIT Reload News | 
CANCERLIT Reloaded to Reflect 2001 Vocabulary
  The National Institute for 
  Health (NIH) has completed the annual vocabulary maintenance for the 2001 reload 
  of CANCERLIT.  For this reload, the following changes have occurred. 
New Fields
  Comments CM 
  [for display only] 
  The Comments (CM) field contains Comments as they are entered into MEDLINE from 
  the original document. 
Gene Symbol GS [Phrase 
  Indexed] 
  The Gene Symbols (GS) field contains Gene Symbols as they are entered into CANCERLIT 
  in the original document. They often, but not always, conform to standardized 
  human gene nomenclature. Ignore super or sub-scripts in entry of a gene symbol: 
  psub 120 would be entered p120. Beginning in 1996, data will no longer be added 
  to this field. 
Gene Symbol Word (GW) 
  [Word Indexed] DOES NOT DISPLAY 
  The Gene Word (GW) field contains individual words from the Gene Symbol (GS) 
  field.  
Molecular Sequence (MS) 
  [Phrase Indexed] 
  The Molecular Sequence (MS) field contains an organizational acronym and the 
  unique identifier that organization has applied to a molecular sequence.  
  The acronym appears first followed by a hyphen and the unique identifier, as 
  in genbank-60485.  
Personal Name as Subject 
  Heading (PN) [Phrase Indexed] 
  If an article is an interview, an obituary, or discusses a well-known person, 
  that person's name will appear in the Personal Name As Subject (PN) field.  
  The format for the Personal Name field is the same as that for the Author field—last 
  name and initials, as in Haddow A.  Enter a last name and one initial, 
  if known.  
PubMed Identifier (PM) 
  [Phrase Indexed] 
  The PubMed Identifier (PM) field contains the PubMed number first assigned by 
  NLM. This number is another unique identifier of the records.
CAS Registry Number (RW) 
  [Word Indexed] DOES NOT DISPLAY 
  The Registry Word (RW) field contains single words from the Registry Number 
  (RN) field and is used to search portions of chemical names. 
Deleted Field 
  With the 2001 reload of the 
  CANCERLIT database, the ISBN (IB) field has been eliminated. 
Publication Type
  The 2001 reload of CANCERLIT 
  introduces three new Publication Types.