You missed it? See the first sentence of the results section, table 1, and ... the rest of the paper. I looked into some of the refs in table 1 and it seems th

You missed it? See the first sentence of the results section, table 1, and ... the rest of the paper. I looked into some of the refs in table 1 and it seems they are being misrepresented, mostly because Kisielinski et al are acting like this is the concentration during inhalation when in the 2 papers I looked at it was average over time. Since exhaled breath has several percent, I think you really need to be able to resolve concentration over time and look at the inhale, otherwise the data is useless.