Dealing with substances with no defined molecular weight in non-animal assays for skin sensitization. A comment on "Plant extracts, polymers and new approach methods: Practical experience with skin sensitization assessment" ()"
1 School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, United Kingdom. Electronic address: d.w.roberts@ljmu.ac.uk.