title: A simple and cheap device for gradient formation.
authors.affiliation: Institute of Molecular Biology, Tumor Research, University of Essen, FRG.
authors.forename: K
authors.initials: K
authors.lastname: Dreyer
authors.forename: B
authors.initials: B
authors.lastname: Opalka
authors.forename: H
authors.initials: H
authors.lastname: Schulte-Holthausen
mesh_terms: D002499:Centrifugation, Density Gradient / Q000295:instrumentation*; D004247:DNA / Q000302:isolation & purification*; D004587:Electrophoresis, Agar Gel; D006801:Humans
chemical_list: D004247:DNA