NAME
    UMLS::Interface CHANGES

  Changes from version 0.23 to 0.25
    1. Fixed mysql error that was occuring in UMLS-Interface

        DBD::mysql::db do failed: You have an error in your SQL syntax; 
        check the manual that corresponds to your MySQL server version 
        for the right syntax to use near '' at line 1 at 
        /usr/local/share/perl/5.10.0/UMLS/Interface.pm line 1063, <STDIN> 
        line 2.

       This was also happening on line 1066 - both should be fixed now.

    2. Updated INSTALL documentation - nothing major just some clean up

    3. Added a --forcerun option which will bypass any questions about
    whether or not you would like to set up an index on a specified set of
    relations/sources

    4. Updated the documentation of the programs in the util/ directory

  Changes from version 0.21 to 0.23
1. Added a getRelation function which returns all the possible 
   relations in the MRREL file given a specified CUI and 
   source. There is a corresponding util program getRelation.pl 
   to show how this is used.
2. Modified checking the existance of the UMLS tables. Before it 
   was expecting the table names to be all capatalized but now 
   they can be in lower case as well.
  Changes from version 0.19 to 0.21
    1. Added check to see if program files exist prior to removing them just
    in case they don't exist an error isn't going to display

    2. Had an error in getCuiDef.pl when the input was a term. This has been
    fixed.

    3. Modified the upper level taxonomy to be written to tables in its
    appropriate database.

    4. Add the program removeConfigData.pl which will remove the database
    and all of the associated files created by the program given a specified
    configuration.

  Changes from version 0.17 to 0.19
    1. Modified the documentation in the utils/ programs. The descriptions
    were just a mess

  Changes from version 0.15 to 0.17
    1. In SNOMED CT there exist concepts that are used to show why a concept
    is retired. Unfortunately, the relationship linking that reason to the
    retired concept is 'is-a'. So you have for example 'stenosis' is-a
    'non-current concept - ambiguous'. This is understandable in a plain
    English sense but doesn't fit into the hierarchical sense of an 'is-a'
    relationship. We now exclude these nodes:

    C1274012|Ambiguous concept (inactive concept) C1276325|Reason not stated
    concept (inactive concept) C1274013|Duplicate concept (inactive concept)
    C1274014|Outdated concept (inactive concept) C1274015|Erroneous concept
    (inactive concept) C1274021|Moved elsewhere (inactive concept)

    If you have a strong reason why they should still be there send us an
    email and we can probably work something else out.

    2. When using the RB/RN and PAR/CHD relations not all of the upper level
    taxonomy was being looked at to obtain the path information. This has
    been fixed.

    3. Moved the dropTemporaryTables.pl program to removeConfigData.pl and
    added the functionality to drop the files associated with the
    configuration data as well.

    4. The UMLS-Interface module was not accepting the a configuration file
    if the first one was printed out incorrectly. We fixed this.

    5. Added configuration file information printed out to STDERR containing
    source, relation and configuration file location information.

    6. Added a file option to the findShortestPath.pl program:

       --inputfile FILE

       A file containing pairs of concepts or terms in the following format:

        term1<>term2 
        
    or 

        cui1<>cui2

        or 

        cui1<>term2 

        or 

        term1<>cui2

  Changes from version 0.13 to 0.15
    1. Added three new functions for semantic types:

          getSt       which returns the semantic type TUI of a given CUI
          getStAbr    which returns the semantic type abbreviation 
                      given the semantic type TUI
          getStString which returns the semantic type string 
                      given the semantic type abbreviation

    2. Added a program to the utils/ directory:

          getSt.pl    which returns the semantic type of a given CUI
                      or TERM in the UMLS. This program uses the three 
                      above functions.

    3. Added the function checkConceptExists which returns true or false
    whether a concept exists in the current view of the UMLS (this is based
    on the sources and relations that are being used). This function was
    hidden but it seemed like it could be useful to others as well - it
    became useful for me anyway :)

    4. Modified the SYNOPSIS section in the Interface.pm module to include
    all or at least most of the different functions available through the
    Interface.pm module.

    5. Fixed the permissions on the configuration file directory when it is
    being created. And chmod the individual files after they were created.
    Hopefully now they will be created with read and write privlidges so you
    can see them if you install using the -MCPAN option.

    6. Modified the findPathToRoot.pl and findShortestPath.pl to include the
    term associated with the CUI in the path

    7. I forgot to add the UMLS Root to the PATH in the pathToRoot function.
    It is now added.

  Changes from version 0.11 to 0.13
    1. Speed up the getTermList() option when all of the sources are being
    used

    2. Modified documentation

    3. Added the function findMinimumDepth and findMaximumDepth which
    returns the minimum and maximum depth of a CUI respectively given the
    view of the UMLS

  Changes from version 0.09 to 0.11
    1. Modified the Changelog directory and tried to remember to add them to
    the release!

    2. Modified documenation - tried to get the misspelling and obvious
    errors removed.

    3. Removed the HTML documentation

  Changes from version 0.03 to 0.09
    1. Allowed the program to create the directory that we prompt the user
    for (the location that the config files should be stored) if it doesn't
    exist rather than requiring it be already created.

    2. Modified the location of where the utils/ programs are installed. All
    of them now get installed and they are all in the same location.

    3. Found a bug in the code that reads the configuration file. Error
    would occur if trying to exclude a source.

  Changes from version 0.01 to 0.03
    1. Removed the need for UMLSINTERFACE environment variable indicating
    the location of the UMLS. Now we prompt the user for the location that
    the config files should be stored and ask them to set a
    UMLSINTERFACE_CONFIGFILE_DIR variable.

