“double blinding of this trial was ensured by use of matching colour, size and smell of placebo and cinnamon”; “The investigator... was unaware which were active and which were placebo until the end of the trial
“double blinding of this trial wasensured by use of matching colour, size andsmell of placebo and cinnamon”; “The investigator...was unaware which were activeand which were placebo until the end ofthe trial