(JonathanFoulds PhD, Susan Veldheer MS RD, Jessica Yingst, Shari Hrabovsky RN MSN. Comparison of dependence on electroniccigarettes and regular cigarettes in a large sample of e-cig users. PennState University College of Medicine, Department of Public Health Sciences,Hershey, PA.)

(See: Schober W, et al. Use of electronic cigarettes [e-cigarettes] impairs indoor air quality and increase FeNO levels of e-cigarette consumers. International Journal of Hygiene and Environmental Health 2013; doie: 10.1016/j.ijheh.2013.11.003.)

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