title: Validation at a crossroads.
authors.forename: Michael
authors.initials: M
authors.lastname: Balls
authors.forename: Robert
authors.initials: R
authors.lastname: Combes
mesh_terms: D000826:Animal Testing Alternatives / Q000379:methods* / Q000592:standards*; D000818:Animals; D005062:European Union; D007391:International Cooperation; D007753:Laboratories; D015203:Reproducibility of Results