title: Extension of the "hygiene hypothesis" to the association of occupational endotoxin exposure with lower lung cancer risk.
authors.forename: John H
authors.initials: JH
authors.lastname: Lange
authors.forename: Ragnar
authors.initials: R
authors.lastname: Rylander
authors.forename: Ugo
authors.initials: U
authors.lastname: Fedeli
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Mastrangelo
mesh_terms: D004731:Endotoxins / Q000633:toxicity*; D006801:Humans; D006920:Hygiene; D008175:Lung Neoplasms / Q000276:immunology* / Q000517:prevention & control; D016273:Occupational Exposure; D012306:Risk
chemical_list: D004731:Endotoxins