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Comparative Effectiveness Research: An Empirical Study of Trials Registered in ClinicalTrials.gov
Bourgeois FT,
Murthy S,
Mandl KD
(2012)
Comparative Effectiveness Research: An Empirical Study of Trials Registered in ClinicalTrials.gov.
PLOS ONE 7(1): e28820.
https://doi.org/10.1371/journal.pone.0028820