1. Sankpal, U. T. et al. Environmental factors in causing human cancers: emphasis on tumorigenesis. Tumor Biology 33, 1265–1274 (2012).
2. Harvey, R. G. Polycyclic Aromatic Hydrocarons: Chemistry and Cancer. (Wiley-VCH Inc., 1997).
3. Grasso, P. Carcinogens in food. Vol. ACS Monograph 182 1205–1239 (American Chemical Socity Press, 1984).
4. Matter, N. P. P. O. Committee on Biologic Effects of Atmospheric Pollutants, Division of Medical Sciences, National Research Council. National Academy of Sciences, Washington, DC (1972).
5. Phillips, D. H. Fifty years of benzo(a)pyrene. Nature 303, 468–472 (1983).