MEDLINE Baseline Repository Raw Data README File -------------------------------------------------------------------------------- SubHeading (SH) Files (qualifier terms): SH_items MH/SH (MH_SH) Combination Files (MH/qualifier combination terms): MH_SH_items -- Format of files: term(s)|MajorTopic|PMID|DateCreated|DateCompleted|DateRevised Full MH/SH (MH_SH) Combination File: Full_MH_SH_items * This differs from the MH_SH_items file by including all cases of MH/SH combinations for a citation - this includes MH/null. -- Format of files: MH_term|SH_term/null|MajorTopic|PMID|DateCreated|DateCompleted|DateRevised Main Heading (MH) Files (MH terms): MH_items -- Format of file: term|MajorTopic|Tcode(s)|PMID|DateCreated|DateCompleted|DateRevised Chemical Files (NM terms): Chemical_items -- Format of file: SubstanceName|PMID|DateCreated|DateCompleted|DateRevised ID_items: -- Format of file: PMID|DateCreated|DateCompleted|DateRevised|PubYear|Status where Status is (MEDLINE (0), OLDMEDLINE (1), PubMed-not-MEDLINE (2)). NOTES: 1) Prior to 2005, Completed was used instead of MEDLINE, both have Status = 0. 2) OLDMEDLINE first appears in 2005 baseline and has Status = 1. 3) Prior to 2004, Out-of-Scope was used instead of PubMed-not-MEDLINE, both have Status = 2. SubHeading (SH) Files (qualifier terms) Unique List: SH_items.u -- Format of file: term(s)|MajorTopic|PMID|DateCreated|DateCompleted|DateRevised NOTE: 1) There are periodically duplicate entries of SHs in a given citation. We may also have a mixture of starred and non-starred entries with the same SH. We attempt in this file to capture the uniqueness of this SH within this citation. For example (PMID: 7176534): MH - Complement 3/*analysis MH - Immunoglobulin A/analysis MH - Immunoglobulin G/analysis MH - Immunoglobulin M/analysis MH - Immunoglobulins/*analysis We would add the following entries into the SH_items.u file which shows that for this SH in this citation, we have a uniqueness of "analysis" appearing as a starred item AND as a non-starred item: analysis|0|7176534|19830225|19830225|20011102| analysis|1|7176534|19830225|19830225|20011102| Summary: MH_ctr - Count of entries in MH_items file SH_fctr - Count of entries in SH_items file. (See NOTE above) ID_ctr - Count of entries in ID_items file MH_SH_ctr - Count of entries in MH_SH_items file RN_ctr - Count of entries in Chemical_items file Fields: terms(s) - MeSH Main Heading, MeSH SubHeading/Qualifier, or a combination of these two entities. MajorTopic - Flag as to whether term(s) are starred. 1 = yes, 0 = no. Tcode(s) - One or more MeSH Treecodes assigned to this MeSH Main Heading. If there are multiple treecodes, we use ";" as a separator. PMID - PubMed Identifier DateCreate - Date that the citation was recognized as being in PubMed. NOTE Format: YYYYMMDD DateCompleted - Date that indexing was recognized as being completed. NOTE Format: YYYYMMDD DateRevised - Date that the citation had it's indexing revised. NOTE Format: YYYYMMDD SubstanceName - Name of the Substance