title: An introduction to the National Human Exposure Assessment Survey (NHEXAS) and related phase I field studies.
authors.affiliation: School of Public Health, University of Minnesota, Minneapolis, 55455, USA.
authors.forename: K
authors.initials: K
authors.lastname: Sexton
authors.forename: D E
authors.initials: DE
authors.lastname: Kleffman
authors.forename: M A
authors.initials: MA
authors.lastname: Callahan
mesh_terms: D017321:Clinical Trials, Phase I as Topic; D004781:Environmental Exposure; D004787:Environmental Pollution; D006077:Government Agencies; D006801:Humans; D016015:Logistic Models; D011159:Population Surveillance; D014481:United States