Berger, Vance W Allocation concealment continues to be misunderstood. [electronic resource] - Journal of clinical epidemiology Apr 2010 - 468-9; author reply 469-70 p. digital Publication Type: Comment; Letter ISSN: 1878-5921 Standard No.: 10.1016/j.jclinepi.2009.09.004 doi Subjects--Topical Terms: HumansRandom AllocationSelection Bias