title: [Hygiene hypothesis and allergic diseases].
authors: Department of Allergy and Immunology, National Research Institute for Child Health and Development. kmatsumoto@nch.go.jp
authors: Kenji
authors: K
authors: Matsumoto
mesh_terms: D004781:Environmental Exposure; D006801:Humans; D006967:Hypersensitivity / Q000209:etiology* / Q000276:immunology; D007113:Immunity, Innate; D007223:Infant; D007231:Infant, Newborn