Practical guide and verification
Use DOI lookup for journal metadata, then review the fields
A DOI lookup can populate authors, title, journal, year, volume, issue, pages, and DOI from Crossref. It reduces transcription work, but registry metadata can be incomplete, so compare the populated form with the article or journal record.
Keep Vancouver reference order separate from formatting
Vancouver references are generally numbered in citation order rather than alphabetized by author. A generator can format one reference correctly but cannot know the final number until the manuscript’s citation sequence is established.
Check author truncation and journal-title rules
Biomedical journals can apply specific limits on how many authors are listed before “et al.” and may require NLM-style journal abbreviations. Follow the target journal or institution when its instructions differ from a generic Vancouver template.
Use the DOI as an identifier, not a substitute for missing metadata
A DOI is valuable evidence that helps locate the work, but a reference still needs the required author, title, container, date, and publication details. Review empty or suspicious fields after lookup rather than assuming the identifier makes the record complete.
Recheck the final numbered list before submission
Verify that each in-text number maps to the intended reference and that repeated citations reuse the same number. Renumbering after edits is a document-level task beyond the single-reference formatter, so perform a final list-to-text audit.