title: Asthma may be more severe if it is work-related.
authors.forename: Jean-Luc
authors.initials: JL
authors.lastname: Malo
mesh_terms: D001249:Asthma / Q000453:epidemiology / Q000209:etiology*; D016022:Case-Control Studies; D006801:Humans; D009784:Occupational Diseases / Q000453:epidemiology / Q000209:etiology*; D016273:Occupational Exposure / Q000009:adverse effects*; D015995:Prevalence