title: The expression of the allocation concealment for randomised controlled trials needs to be improved.
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhao
authors.forename: Shi-Gui
authors.initials: SG
authors.lastname: Yan
mesh_terms: D006801:Humans; D011897:Random Allocation; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D009626:Terminology as Topic