RT Journal
A1 Psaty BM, Prentice RL
T1 IMportance of blinding in randomized trials—reply
JF JAMA
JO JAMA
YR 2010
FD November 17
VO 304
IS 19
SP 2127
OP 2128
DO 10.1001/jama.2010.1622
UL http://dx.doi.org/10.1001/jama.2010.1622
AB 
It is not clear how Strite and Stuart imagine that the balance between treatment groups resulting from randomization itself might be disrupted. Perhaps they have in mind allocation concealment, which is typically used to describe tamper-proof methods of randomization. Allocation concealment is different from whether the trial is conducted in an open or a blinded fashion, and it is important in all trials, open or blinded.