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J R Soc Med. 2013 Mar;106(3):81-6. doi: 10.1177/0141076813476498.

Can understanding mechanisms solve the problem of extrapolating from study to target populations (the problem of 'external validity')?

Author information

1
Department of Primary Care Health Sciences, University of Oxford, Oxford OX2 6GG, UK. jeremy.howick@phc.ox.ac.uk
PMID:
23481429
PMCID:
PMC3595417
DOI:
10.1177/0141076813476498
[Indexed for MEDLINE]
Free PMC Article

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