title: Asthma in early life: is the hygiene hypothesis correct?
authors.forename: Scott T
authors.initials: ST
authors.lastname: Weiss
mesh_terms: D001249:Asthma / Q000209:etiology* / Q000276:immunology; D002675:Child, Preschool; D003140:Communicable Disease Control; D006801:Humans; D006920:Hygiene; D014808:Vitamin D Deficiency / Q000150:complications