folder pubmed_baseline_2021-12-12 (2237 files)
filepubmed22n1114.xml.gz.md5 0.06kB
filepubmed22n1114.xml.gz 27.76MB
filepubmed22n1113.xml.gz.md5 0.06kB
filepubmed22n1113.xml.gz 58.84MB
filepubmed22n1112.xml.gz.md5 0.06kB
filepubmed22n1112.xml.gz 67.00MB
filepubmed22n1111.xml.gz.md5 0.06kB
filepubmed22n1111.xml.gz 59.06MB
filepubmed22n1110.xml.gz.md5 0.06kB
filepubmed22n1110.xml.gz 65.39MB
filepubmed22n1109.xml.gz.md5 0.06kB
filepubmed22n1109.xml.gz 63.22MB
filepubmed22n1108.xml.gz.md5 0.06kB
filepubmed22n1108.xml.gz 68.37MB
filepubmed22n1107.xml.gz.md5 0.06kB
filepubmed22n1107.xml.gz 69.96MB
filepubmed22n1106.xml.gz.md5 0.06kB
filepubmed22n1106.xml.gz 70.45MB
filepubmed22n1105.xml.gz.md5 0.06kB
filepubmed22n1105.xml.gz 65.62MB
filepubmed22n1104.xml.gz.md5 0.06kB
filepubmed22n1104.xml.gz 66.79MB
filepubmed22n1103.xml.gz.md5 0.06kB
filepubmed22n1103.xml.gz 69.25MB
filepubmed22n1102.xml.gz.md5 0.06kB
filepubmed22n1102.xml.gz 65.53MB
filepubmed22n1101.xml.gz.md5 0.06kB
filepubmed22n1101.xml.gz 68.00MB
filepubmed22n1100.xml.gz.md5 0.06kB
filepubmed22n1100.xml.gz 64.62MB
filepubmed22n1099.xml.gz.md5 0.06kB
filepubmed22n1099.xml.gz 73.25MB
filepubmed22n1098.xml.gz.md5 0.06kB
filepubmed22n1098.xml.gz 69.16MB
filepubmed22n1097.xml.gz.md5 0.06kB
filepubmed22n1097.xml.gz 67.91MB
filepubmed22n1096.xml.gz.md5 0.06kB
filepubmed22n1096.xml.gz 70.79MB
filepubmed22n1095.xml.gz.md5 0.06kB
filepubmed22n1095.xml.gz 65.34MB
filepubmed22n1094.xml.gz.md5 0.06kB
filepubmed22n1094.xml.gz 71.96MB
filepubmed22n1093.xml.gz.md5 0.06kB
filepubmed22n1093.xml.gz 67.50MB
filepubmed22n1092.xml.gz.md5 0.06kB
filepubmed22n1092.xml.gz 70.16MB
filepubmed22n1091.xml.gz.md5 0.06kB
filepubmed22n1091.xml.gz 73.22MB
filepubmed22n1090.xml.gz.md5 0.06kB
Too many files! Click here to view them all.
Type: Dataset
Tags: PubMed, nih, academic papers, citations, references, metadata

title= {Pubmed Baseline 2021-12-12},
journal= {},
author= {National Institutes of Health and National Library of Medicine},
year= {2021},
url= {},
abstract= {Just the baseline files, no update files. 
md5 sums included and checked before upload.


The PubMed Baseline Repository and Daily Update files
Last Updated December 13, 2022

All questions should be directed to:
National Center for Biotechnology Information

This document describes the PubMed Database available on the NCBI FTP site under the and directories.

PubMed comprises more than 31 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.

Please use a valid email address as your password when you download these data so that we can contact you regarding changes and updates.

For the latest information and updates, please subscribe to our listserv at

Please note that the Baseline and Daily Update folders include the citation data (XML) as well as the corresponding .md5 files. Please use the .md5 file to verify the integrity of the XML.

Record counts are also included in an HTML file. We do our best to ensure that the counts in the HTML file match the counts in the XML files; however, the .md5 files should be used to check the validity of the XML.  The HTML counts are not intended for this purpose.

Baseline Data
NLM produces a baseline set of MEDLINE/PubMed citation records in XML format for download on an annual basis. The annual baseline is released in December of each year. The complete baseline consists of files pubmed22n0001 through pubmed22n1114. 

Daily Update Files
Each day, NLM produces update files that include new, revised and deleted citations. The first Update file to be loaded after loading the complete set of 2022 MEDLINE/PubMed Baseline files is pubmed22n1115.xml.


Alphabetical list of elements and their attributes

keywords= {metadata, pubmed, nih, academic papers, citations, references},
terms= {Terms and Conditions
Downloading PubMed data from the National Library of Medicine FTP servers indicates your acceptance of the following Terms and Conditions. No charges, usage fees or royalties are paid to NLM for these data.  
PubMed Specific Terms:
NLM freely provides PubMed data. Please note some abstracts may be protected by copyright.
General Terms and Conditions:
-Users of the data agree to: 
--acknowledge NLM as the source of the data in a clear and conspicuous manner,
--properly use registration and/or trademark symbols when referring to NLM products, and
--not indicate or imply that NLM has endorsed its products/services/applications. 
-Users who republish or redistribute the data (services, products or raw data) agree to: 
--maintain the most current version of all distributed data, or
--make known in a clear and conspicuous manner that the products/services/applications do not reflect the most current/accurate data available from NLM.
-These data are produced with a reasonable standard of care, but NLM makes no warranties express or implied, including no warranty of merchantability or fitness for particular purpose, regarding the accuracy or completeness of the data. Users agree to hold NLM and the U.S. Government harmless from any liability resulting from errors in the data. NLM disclaims any liability for any consequences due to use, misuse, or interpretation of information contained or not contained in the data.
-NLM does not provide legal advice regarding copyright, fair use, or other aspects of intellectual property rights. See the NLM Copyright page.
-NLM reserves the right to change the type and format of its machine-readable data. NLM will take reasonable steps to inform users of any changes to the format of the data before the data are distributed via the announcement section or subscription to email and RSS updates.
license= {},
superseded= {}

Hosted by users:

Send Feedback