I am a non-smoker, how is it possible that cotinine showed up in my blood work (Web/FAQ)

0 votes
asked Aug 20, 2013 in Cotinine by anonymous

1 Answer

0 votes
answered Apr 7, 2016 by anonymous
Second hand smoke, environment, possibly what you ate. There are a lot of variables . The first being there was an error made in the lab.
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