title: Polycomb response elements in vertebrates.
authors: John Radcliffe Hospital, MRC Molecular Haematology Unit, The Weatherall Institute of Molecular Medicine, Headington, Oxford, UK. doug.higgs@imm.ox.ac.uk
authors: David
authors: D
authors: Garrick
authors: Marco
authors: M
authors: De Gobbi
authors: Richard
authors: R
authors: Gibbons
authors: Douglas R
authors: DR
authors: Higgs