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Pragmatic trials--guides to better patient care?
N Engl J Med 364(18):1685-7 (2011) PMID 21542739
DOI: 10.1056/NEJMp1103502
Version: za2963e q8za1 q8zb1 q8zcb q8zd8 q8ze4 q8zf1 q8zg6
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