Threats to Blinding.

O M Davies,Katherine S Takvorian, Daniel Muller,Tim Vining, Alison Burke,Chana A Sacks,Charles C Hardin

NEJM evidence（2022）

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摘要

Blinding is a critical strategy used to limit certain types of bias in randomized controlled trials. This animated video explores the rationale and examines potential threats to keeping group allocation concealed - from study participants and investigators.

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