Randomization and blinding
Before initiation of the study, a computer-based, automated randomization number was generated by using version 1.0 of Random Allocation Software, using block sizes of 4, 6 or 8 by an independent programmer. The randomization concealment was done by sequentially numbered opaque sealed envelopes (SNOSE) technique. The subjects were allocated randomly in a 1:1 ratio to Trusynth Fast
