1. US Department of Health and Human Services. The Health Consequences of Involuntary Exposure to Tobacco Smoke: A Report of the Surgeon General. Atlanta, GA: US Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health; 2006. www.surgeongeneral.gov/library/reports/secondhandsmoke/fullreport.pdf. Accessed February 14, 2015.
2. Worldwide burden of disease from exposure to second-hand smoke: a retrospective analysis of data from 192 countries
3. Mortality attributable to passive smoking in Spain, 2002
4. Ministerio de Sanidad y Consumo. Ley 28/2005, de 26 de diciembre, de medidas sanitarias frente al tabaquismo y reguladora de la venta, el suministro, el consumo y la publicidad de los productos del tabaco. 2005. www.msc.es/novedades/docs/disposicionesGenerales.pdf. Accessed November 3, 2013.
5. Spain: going smoke free;Fernández;Tob Control,2006