title: Protected workers breathe easier.
authors.forename: R B
authors.initials: RB
authors.lastname: Smith
mesh_terms: D001249:Asthma / Q000276:immunology / Q000517:prevention & control*; D006801:Humans; D009784:Occupational Diseases / Q000276:immunology / Q000517:prevention & control*; D016273:Occupational Exposure; D011159:Population Surveillance