Unresolvable Identifier

arXiv:2604.21747 · detector doi_compliance · cross_source · 2026-05-20 00:42:24.175170+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.3389/fcdhc.2021.807192/bibtex' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.

Paper page Integrity report arXiv Try DOI

Evidence text

M. T. Loverro et al., “Pregnancy Complications, Correlation With Placental Pathology and Neonatal Outcomes,” Frontiers in Clinical Diabetes and Healthcare 2, 807192 (2021) [doi:10.3389/FCDHC.2021.807192/BIBTEX]

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.3389/fcdhc.2021.807192/bibtex",
  "raw_excerpt": "M. T. Loverro et al., \u201cPregnancy Complications, Correlation With Placental Pathology and Neonatal Outcomes,\u201d Frontiers in Clinical Diabetes and Healthcare 2, 807192 (2021) [doi:10.3389/FCDHC.2021.807192/BIBTEX]",
  "ref_index": 3,
  "verdict_class": "cross_source"
}