Additional file 1.

Inclusion and Exclusion Criteria for Healthy Nonsmokers and Healthy Smokers[1,2,4-6,8,9,16,17,19,21,30,31][36-43,46-54,57-59,66-76].

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Wang et al. BMC Medical Genomics 2012 5:21   doi:10.1186/1755-8794-5-21