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2. Lack of blinding of outcome assessors in animal model experiments implies risk of observer bias;Bello;Journal of Clinical Epidemiology,2014
3. The risk of unblinding was infrequently and incompletely reported in 300 randomised clinical trial publications;Bello;Journal of Clinical Epidemiology,2014
4. Bello, S., Moustgaard, H., Hróbjartsson, A., n.d. Unreported Risk of Unblinding in Randomised Clinical Trials: A Questionnaire Survey of Authors of Trial Publications (unpublished manuscript).
5. A review of blinding in randomized controlled trials found results inconsistent and questionable;Boutron;Journal of Clinical Epidemiology,2005