title: Evidence for double resistance to permethrin and malathion in head lice: reply from authors
authors.affiliation: Department of Dermatology,Veterinary Science and Public Health, University of Bristol,Bristol BS2 8HW,U.K.
authors.initials: AM
authors.lastname: Downs
authors.initials: KA
authors.lastname: Stafford
authors.initials: I
authors.lastname: Harvey
authors.initials: GC
authors.lastname: Coles