Durham A, Bergier S, Morisod X, Locatelli I, Zellweger J, Huynh C. Improved health of hospitality workers after a Swiss cantonal smoking ban. Swiss Med Wkly [Internet]. 2011 Dec. 19 [cited 2024 Nov. 28];141(5152):w13317. Available from: https://smw.ch/index.php/smw/article/view/1406