title: Comments to 'Can we reverse the burden of proof?'.
authors.affiliation: Zeneca Central Toxicology Laboratory, Macclesfield, Cheshire, UK.
authors.forename: I F
authors.initials: IF
authors.lastname: Purchase
mesh_terms: D000818:Animals; D006801:Humans; D017410:Practice Guidelines as Topic; D018570:Risk Assessment; D014116:Toxicology / Q000331:legislation & jurisprudence* / Q000592:standards*