Guide · Export and import
How to export PubMed results for a literature review
Short answer
- 1On the results page, click Save.
- 2Set Selection to All results.
- 3Set Format to PubMed.
- 4Click Create file and keep the .txt file it downloads.
By Kushan Liyana Arachchige, Research MindUpdated
01Before you export: record the search
PubMed is the free search interface to MEDLINE and other biomedical literature, run by the US National Library of Medicine. It is the reference point for most health and clinical reviews, and its records carry MeSH terms, the controlled vocabulary indexers use to describe each article.
Record the date, the query and the number of results before you save anything. The full query, with the way PubMed translated each term, is under Advanced in the search history and its details. PRISMA-S asks for the query as run, so copy it from there.
02Save every result in the PubMed format
PubMed calls exporting Save. Click it above the results to open Save citations to file. Set Selection to All results; the default saves only the results on the current page. Set Format to PubMed, then click Create file.
Save citations to file
The browser downloads a text file, usually named pubmed- followed by the start of your query, ending in .txt. Keep it as it is. The PubMed format, sometimes called MEDLINE or NBIB format, writes each field on its own tagged line, such as AB for the abstract and MH for MeSH terms, which is why it keeps everything.
03What a PubMed export brings into your review
The PubMed format carries the abstract, MeSH terms, other keywords supplied by authors or publishers, affiliations, grant numbers, publication types and the publication status. MeSH terms are useful twice: at screening, to see what an article is about, and when you check your search, because terms that appear often among relevant records may belong in the query.
- Abstract
- Keywords
- Subject terms
- Affiliations
- Funding
- Times citednot included
- Cited referencesnot included
- Open accessnot included
Every record has a PubMed ID (PMID), and many have a PubMed Central ID and a DOI. Scopus, Web of Science and Embase often carry the PMID too, so SLReviewFlow can match the same article across databases even when the DOI is missing from one of them.
- PubMedYour search, with its date and query
- Import filePubMed format (.txt) with all results
- Search in SLReviewFlowUpload the file under the search it came from
- PoolDuplicates matched on PMID, PMCID, DOI, then title, authors and year
04What PubMed leaves out, and how to work around it
- No citation counts or cited references. PubMed does not count citations or list each article's references. If your review needs them, add Scopus, Web of Science, Lens.org or OpenAlex.
- Biomedicine first. PubMed covers health and life sciences. Reviews that reach into psychology, education or engineering need databases from those fields too.
- Recent records may lack MeSH. New records wait for indexing, and some are never indexed. Free-text terms in your query catch them where MeSH alone would not.
05Doing it in SLReviewFlow
Add the PubMed file in SLReviewFlow
- In Sources, add PubMed, then record the search with its date, query and number of results.
- Upload the .txt file under that search.
- Build the pool with your other databases. The duplicates guide explains what happens next.
06Common problems
Why not export PubMed as CSV?
PubMed's CSV holds a short summary of each record without the abstract or MeSH terms, and SLReviewFlow does not import it. The PubMed format keeps every field.
My search has more than 10,000 results. What now?
Save citations to file stops at 10,000 records. Split the search into date ranges that each return fewer than 10,000 results, save each one, and upload every file under the same search. Better still, check whether the query is more specific than it needs to be.
Is MEDLINE the same as PubMed?
No. MEDLINE is the indexed core of PubMed: records with MeSH terms assigned by indexers. PubMed also holds records that are not yet indexed, or never will be, so a PubMed search finds more than MEDLINE alone. If you search MEDLINE through Ovid or EBSCOhost instead, report that platform.
Does the file include the full text?
No. PubMed holds citations and abstracts. Where a free full text exists, the record includes its PubMed Central ID, which helps at the full-text stage.
07References
- National Library of Medicine. PubMed User Guide: saving and emailing citations. https://pubmed.ncbi.nlm.nih.gov/help/
- Columbia University Irving Medical Center Library. How can I export hundreds of PubMed articles in bulk? https://library.cumc.columbia.edu/faq/my-search-pubmed-resulted-hundreds-articles-how
- Rethlefsen ML, Kirtley S, Waffenschmidt S, et al. PRISMA-S: an extension to the PRISMA statement for reporting literature searches in systematic reviews. Syst Rev. 2021;10:39. https://doi.org/10.1186/s13643-020-01542-z