Dataset:   mint_nicotine.txt

Source: A.M. Ghazi, A.S. Salhab, T.A. Arafat, and Y.M. Irshaid (2011).
"Effect of Mint Drink on Metabolism of Nicotine as Measured by Nicotine
to Cotinine Ratio in Urine of Jordanian Smoking Volunteers," Nicotine &
Tobacco Research, Published online 3/31/2011. doi:10.1093/ntr/ntr054

Description: 2-Period Crossover Design in 24 subjects measuring
nicotine and cotonine levels when off-menthol (no mint during week)
and while on-menthol (3 mint drinks per day during week).
Presumably, first 12 had one sequence, second 12 had reverse sequence
(not stated in paper). Authors used paired t-test on nictine/cotinine
ratio.


Variables/Columns
Subject     7-8
Off menthol Nicotine   10-16
Mint Drink Nicotine   18-24
Off Menthol Cotinine   26-32
Mint Drink Cotinine    34-40
Off Menthol Nic/Cot    42-48
Mint Drink Nic/Cot     50-56