1. Centers for Disease Control and Prevention. Second hand smoke and family health. USA: Department of Health and Human Services; 2003. Available at: http://www.cdc.gov/tobacco. Last accessed date 2008.
2. Children's exposure to passive smoking in England since the 1980s: cotinine evidence from population surveys;Jarvis;BMJ,2000
3. Board of Science and Education and Tobacco Control. Smoking and reproductive life. The impact of smoking on sexual, reproductive and child health. Edinburgh: British Medical Association; 2004. Available at: http://www.bma.org.uk. Last accessed date 2008.
4. World Health Organization. Tobacco free initiative. International consultation on environmental tobacco smoke and child health report. Geneva: WHO; 1999.
5. Prevalence of snoring and symptoms of sleep-disordered breathing in primary school children in Istanbul;Ersu;Chest,2004