title: "Double exposure": how real is it?
abstract: Comments on The Focus article "Double Exposure" [EHP 107:A196-A201 (April 1999)]
authors.forename: W C
authors.initials: WC
authors.lastname: Briggs
mesh_terms: D004781:Environmental Exposure / Q000032:analysis*; D006801:Humans; D012016:Reference Values; D012906:Smoke / Q000032:analysis; D014028:Tobacco Smoke Pollution / Q000009:adverse effects* / Q000032:analysis
chemical_list: D012906:Smoke; D014028:Tobacco Smoke Pollution