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PLoS Med. 2008 Mar 11;5(3):e67. doi: 10.1371/journal.pmed.0050067.

Observational research, randomised trials, and two views of medical science.

Author information

  • 1Royal Netherlands Academy of Arts and Sciences, and Department of Clinical Epidemiology, Leiden University Medical Centre, Leiden, The Netherlands. j.p.vandenbroucke@lumc.nl
PMID:
18336067
[PubMed - indexed for MEDLINE]
PMCID:
PMC2265762
Free PMC Article
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