[Utilities-announce] PubMed E-Utilities DTD Mid-year Update June 2018

[utilities-announce at ncbi.nlm.nih.gov]

 Dear NCBI PubMed E-Utilities Users,

On June 1, 2018, we will begin displaying formulas in citation titles, abstracts, and keywords in PubMed.  Today, formulas are replaced with [Formula: see text].   With this enhancement to PubMed, you will see formulas in the PubMed summary and abstract displays when these data are available.  We will also be including the MathML 3.0 element tags in PubMed XML.

To support the addition of MathML tagging in our XML, we have created a new, forthcoming DTD which will be in use as of June 1, 2018.  You can download the forthcoming DTD for June 2018<http://dtd.nlm.nih.gov/ncbi/pubmed/out/180601/pubmed_180601.zip> now.  Existing content will be valid against the new DTD. You can also download sample XML files with MathML 3.0 tags<ftp://ftp.ncbi.nlm.nih.gov/pubmed/sample-2018-06-01/>.

Thank you,
PubMed Development Team

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