In a randomized experiment, allocation concealment hides the sorting of trial participants into treatment groups so that this knowledge cannot be exploited. Adequate allocation concealment serves to ...
A 2012 Cochrane systematic review (assessed as up to date September 2011, Nelson et al. 2012) investigated non-surgical therapy for anal fissure. A second systematic review of clinical trials ...
Data sources Cochrane Oral Health Group specialised register of RCT, limited to the Journal of Clinical Periodontology, Journal of Periodontology and Journal of Periodontal Research from 1996 to 1998.
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