Publications with different versions / on preprint servers

[globbestael]

General

There are 2 types of publications with different versions:

• Only updated in the same journal
  • Cochrane reviews: have different versions (same article number, different DOIs)
  • eLife
  • ...
• Publications on preprint servers: the final version may be published in another journal

Cochrane

DedupEndNote compares Cochrane reviews differently:

• if both have a DOI, only the DOIs are compared
• they have to be published in the same year.

Preprints

See the PubMed pilot: https://www.ncbi.nlm.nih.gov/pmc/about/nihpreprints/ The pilot will be extended to Phase 2 from Jan 1, 2023: https://www.ncbi.nlm.nih.gov/pmc/about/nihpreprints/ Takes publications from: medRxiv, bioRxiv, ChemRxiv, arXiv, Research Square, and SSRN

With query "preprint[filter]" (or "preprint[pt]"):

• On 2021-10-18: 2748 articles
• On 2022-03-26: 3203 articles
• On 2022-08-09: 3456 articles

Examples:

Publisher	example DOI	comments
arxiv	https://arxiv.org/abs/2109.01097v1 AND https://arxiv.org/pdf/2109.01097v1	has no regular DOI! Starting page in RIS format: arXiv:2107.12817v1
bioRxiv	10.1101/2020.12.04.409144
chemRxiv	10.26434/chemrxiv.12931769
medRxiv	10.1101/2020.11.28.20240267	same prefix as bioRXiv
Research Square	10.21203/rs.3.rs-513461/v1
SSRN	10.2139/ssrn.3628297

Notes

• Record has a field "isCochrane". Maybe this field should be renamed to "preferDOI" (or onlyCompareByDOI?)
• in DeduplicationService::compareStartPageOrDoi isCochrane records compare only for the same year. Is this also necessary for these preprint publications?