title: Hypothesis: ill health associated with low concentrations of nitrogen dioxide--an effect of ultrafine particles?
authors.forename: A
authors.initials: A
authors.lastname: Seaton
authors.forename: M
authors.initials: M
authors.lastname: Dennekamp
mesh_terms: D000393:Air Pollutants / Q000633:toxicity*; D015986:Confounding Factors, Epidemiologic; D004782:Environmental Health; D006304:Health Status; D006801:Humans; D009585:Nitrogen Dioxide / Q000633:toxicity*; D010316:Particle Size
chemical_list: D000393:Air Pollutants; D009585:Nitrogen Dioxide