منابع مشابه
Recruitment to trials - why is it hard and how might we make it less so?
Background Recruiting participants to trials can be extremely difficult. Estimates of just how difficult vary but around half of trials fail to recruit their original target sample size. Poor recruitment can lead to an underpowered study, which may report clinically relevant effects to be statistically non-significant. A non-significant finding increases the risk that an effective intervention ...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 2019
ISSN: 0022-5223
DOI: 10.1016/j.jtcvs.2018.10.083