(2004; 45 pages)
Updating texts based on the WHO model formulary
Revised editions of the WMF include a list of all changes to the WMLEM at the front to alert users to these changes. This list of changes should be checked first to assess whether changes will also be required in the NF. The latest edition of a NF should always be carefully compared to the latest edition of the WMF, particularly the text of the general therapeutics sections. This is best done by the members of the editorial team who will follow through the whole review process of a particular section or chapter.
The acceptance of new changes made to the WMF in the NF should involve careful appraisal of new information in the context of local guidelines and practices. Detailed discussion by the NFC and expert advisers is always necessary before making significant changes to recommendations about the management of diseases. If a different text style was used for texts copied from the WMF this can greatly facilitate the process of comparing new text from the WMF with that of the NF.
Existing word-processing software packages may also have the capacity to compare different versions of the same document, i.e. the revised file of the WMF may be compared to the same file from the previous edition, thus quickly pinpointing places where changes were effected. Although such electronic editing tools can speed up the comparison process, it will still be necessary to carefully read, compare and comprehend relevant texts before deciding on the appropriate actions.