Improved health of hospitality workers after a Swiss cantonal smoking ban. Swiss Medical Weekly, [S. l.], v. 141, n. 5152, p. w13317, 2011. DOI: 10.4414/smw.2011.13317. Disponível em: https://smw.ch/index.php/smw/article/view/1406. Acesso em: 25 oct. 2025.