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Observational versus randomised trial evidence.

Research output: Contribution to journalComment/debatepeer-review

Original languageEnglish (US)
Pages (from-to)757
Number of pages1
JournalLancet
Volume364
Issue number9436
DOIs
StatePublished - 2004
Externally publishedYes

ASJC Scopus subject areas

  • General Medicine

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