http://tobaccodocuments.org/bliley_pm/26396.html
"Tredaniel, J., Boffetta, P., Saracci, R., and Hirsch, A., 'Exposure to Environmental Tobacco Smoke and Non-Neoplastic Respiratory Diseases.' Eur Respir J 7: 173-185, 1994.". 01 Jan 1994. Bates: 2048781619-2048781621.
http://tobaccodocuments.org/bliley_pm/26396.html