Question or two...
"In the first experiment, 31 people slurped beer until their breath alcohol concentration (BrAC) measured 0.05 per cent, they then sipped wine until their BrAC increased to 0.11 per cent. Another handful of 31 participants repeated the same experiment but consumed wine before beer. The rest of the group, 28 people, acted as the control group and were only given one type of alcoholic beverage to drink."
How much alcohol are we talking here to get a BrAC of 0.11% ? Can different people get to the BrAC on different quantities?