The extension of smoke-free areas and acute myocardial infarction mortality: before and after study
Joan R Villalbí, Emília Sánchez, Josep Benet, Carmen Cabezas, Antonia Castillo, Alex Guarga, Esteve Saltó, Ricard Tresserras, for the Barcelona Group for Smoking Regulation Policies Evaluation
BMJ Open Jan 2011, 1 (1) e000067; DOI: 10.1136/bmjopen-2011-000067