Yavchitz A, Ravaud P, Altman DG, Moher D, Hrobjartsson A, Lasserson T, Boutron I (2016)

A new classification of spin in systematic reviews and meta-analyses was developed and ranked according to the severity. Journal of Clinical Epidemiology 75:56-65.
Classification system for spin in systematic reviews

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JLL Book of EssaysHave you read the James Lind Library's Introduction to Fair Tests of Treatments?

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