The International E-magazine on Adolescent Health; Skin and Skeletal-Muscular Systems II | Page 5

References (Smoking): • "Benzene." American Cancer Society. N.p., 12 Sept. 2013. Web. 03 Mar. 2014. . • "Ethylene Oxide." USEPA. Environmental Protection Agency, 18 Oct. 2013. Web. 03 Mar. 2014. . • "Title: The Man of Commerce." WDL RSS. N.p., n.d. Web. 07 Mar. 2014. . • "What You Should Know about Formaldehyde." CDC. ATSDR, Web. 02 Mar. 2014.   5