Randomisation to protect against selection bias in healthcare trials.
作者： Jan Odgaard-Jensen , Gunn E Vist , Antje Timmer , Regina Kunz , Elie A Akl
DOI: 10.1002/14651858.MR000012.PUB3
关键词: Health care 、 Treatment outcome 、 MEDLINE 、 Intensive care medicine 、 Medicine 、 Random allocation 、 Statistics 、 Selection bias
摘要: Background Randomised trials use the play of chance to assign participants to comparison groups. The unpredictability of the process, if not subverted, should prevent systematic …
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