Empirical evidence of an association between internal validity and effect size in randomized controlled trials of low-back pain

M.W. van Tulder, M. Suttorp, S. Morton, L.M. Bouter, P. Shekelle

Research output: Contribution to journalArticleAcademicpeer-review

Original languageEnglish
Pages (from-to)1685-1692
Number of pages8
JournalSpine
Volume34
Issue number16
DOIs
Publication statusPublished - 2009

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