title: An introduction to the National Environmental Methods Index.
authors.affiliation: Instant Reference Sources, Inc. larrykeith@earthlink.net
authors.forename: Lawrence H
authors.initials: LH
authors.lastname: Keith
authors.forename: Herbert J
authors.initials: HJ
authors.lastname: Brass
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Sullivan
authors.forename: James A
authors.initials: JA
authors.lastname: Boiani
authors.forename: Katherine T
authors.initials: KT
authors.lastname: Alben
mesh_terms: D016208:Databases, Factual; D004782:Environmental Health; D019550:Environmental Medicine / Q000379:methods* / Q000592:standards / Q000706:statistics & numerical data; D006801:Humans; D009313:National Health Programs