[Utilities-announce] DOI updates in PubMed citation data

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

Dear NCBI PubMed E-Utilities Users,

To improve the quality of PubMed data, NLM is undertaking a project to add or correct DOIs for more than 6 million citations in PubMed. These updates will be staggered over several months and we are exporting approximately 100,000 citations per day with revised or new DOIs until the maintenance is complete.

Thank you,
PubMed Development Team


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