title: Methodological problems in a case-referent study based on a register of occupational asthma.
authors.forename: B
authors.initials: B
authors.lastname: Jarvholm
mesh_terms: D001249:Asthma / Q000139:chemically induced / Q000453:epidemiology*; D015982:Bias; D015984:Causality; D006801:Humans; D017953:Isocyanates / Q000009:adverse effects; D009784:Occupational Diseases / Q000139:chemically induced / Q000453:epidemiology*; D016273:Occupational Exposure / Q000009:adverse effects; D012107:Research Design / Q000592:standards*
chemical_list: D017953:Isocyanates