Unresolvable Identifier

arXiv:2605.00383 · detector doi_compliance · cross_source · 2026-05-19 18:12:57.451760+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1186/s12889-021-11819-1' 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

Lin HW, Chen KY, Liao LL, Chang LC, Kao CC. Integrating health literacy into a theory- based drug-use prevention program: A quasi-experimental study among junior high students in Taiwan. BMC Public Health. 2021;21:1778. doi: 10.1186/s12889-021-11819-1

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1186/s12889-021-11819-1",
  "raw_excerpt": "Lin HW, Chen KY, Liao LL, Chang LC, Kao CC. Integrating health literacy into a theory- based drug-use prevention program: A quasi-experimental study among junior high students in Taiwan. BMC Public Health. 2021;21:1778. doi: 10.1186/s12889-021-11819-1",
  "ref_index": 37,
  "verdict_class": "cross_source"
}