Cruickshanks, K.J., Klein, R., Klein, B.E., Wiley, T.L., Nondahl, D.M. and Tweed, T.S. (1998) Cigarette smoking and hearing loss: The epidemiology of hearing loss study. Journal of the American Medical Association, 279(21), 1715-1719.
 Itoh, A., Nakashima, T., Arao, H., Wakai, K., Tamokoshi, A., Kawamura, T. and Ohno, Y. (2001) Smoking and drinking habits as risk factors for hearing loss in the elderly: Epidemiological study of subjects undergoing routine health checks. Aichi Japan Public Health, 115(3), 192-196.
 Sharabi, Y., Reshef-Haran, I., Burstein, M. and Eldav, A. (2002) Cigarette smoking and hearing loss: Lessons from the young adult periodic examinations in Israel (YAPEIS) database. Israel Medical Association Journal, 4(12), 1118-1120.
 Palmer, K.T., Griffin, M.J., Syddall, H.E. and Coggon, D. (2004) Cigarette smoking, occupational exposure to noise, and self reported hearing difficulties. Occupational and Environmental Medicine, 61(3), 340-344.
 Mizoue, T., Miyamoto, T. and Shimizu, T. (2003) Combined effect of smoking and occupational exposure to noise on hearing loss in steel factory workers. Occupational and Environmental Medicine, 60(1), 56-59.
 Nomura, K., Nakao, M. and Yano, E. (2005) Hearing loss associated with smoking and occupational noise exposure in a Japanese metal working company. International Archives of Occupational and Environmental Health, 78(3), 178-184.
 Jaruchinda P, Thongdeetae T, Panichkul S, Hanchumpol P (2005) Prevalence and analysis of noise induced hearing loss in army helicopter pilots and aircraft mechanisms. Journal of the Medical Association of Thailand, 88 (Suppl. 3), 232-239.
 Pyykko, I., Koskimies, K., Starck, J., Pekkarinen, J., Farkkila, M. and Inaba, R. (1989) Risk factors in the genesis of sensory neural hearing loss in Finnish forestry workers. British Journal of Industrial Medicine, 46(7), 439-446.
 Nakanishi, N., Okamoto, M., Nakamura, K., et al. (2000) Cigarette smoking and risk for hearing impairment: A longitudinal study in Japanese male office workers. Occupational and Environmental Medicine, 42(11), 1045- 1049.
 Blachet, C., Erostegui, C., Sugasawa, M. and Dulon, D. (1996) Acetylcholine-induced potassium current of guin- ea pig outer hair cells: Its dependence on a calcium influx through nicotinic-like rereptors. Neurosciences, 16(8), 2574-2584.
 Fechter, L.D., Chen, G.D., Rao, D., et al. (2000) Predicting exposure conditions that facilitate the potentietion of noise – induced hearing loss by carbon monoxide. Toxicology Sciences, 58(2), 315-323.