External and internal validity of open label or double‐blind trials in oral anticoagulation: better, worse or just different?

BEYER‐WESTENDORF, J. ; BÜLLER, H.

Journal of thrombosis and haemostasis, 2011-11, Vol.9 (11), p.2153-2158 [Periódico revisado por pares]

Oxford, UK: Blackwell Publishing Ltd

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