1. Centre for Applied Bioethics, University of Nottingham, Sutton Bonington Campus, Loughborough, LE12 5RD, UK
2. FRAME, Russell & Burch House, 96–98 North Sherwood Street, Nottingham, NG1 4EE, UK
3. ECVAM, JRC Environment Institute, 21020 Ispra (VA), Italy
4. Dipartimento di Oncologia Clinica e Sperimentale, Università di Genova, IST/CBA, Largo R. Benzi 10, 16132 Genoa, Italy
5. Institute for Animal Science and Health (ID-DL), Department of Behaviour, Stress Physiology and Management, Edelhertweg 15, 8200 AB Lelystad, The Netherlands
6. Instituto di Biologia Molecolare, Via Pontina KM 30.600, 00040 Pomezia, Rome, Italy
7. Department for the Study of Animal Experiments, University of Leiden, 2301 CB Leiden, The Netherlands
8. Breast Cancer Laboratory, LICR/UCL, 67–73 Riding House Street, London W1P 7LD, UK
9. Laboratoire de Biologie Cellulaire et Moleculaire, Institut National de la Recherche Agronomique, Domaine de Vilvert, 78352 Jouy-en-Josas, France
10. RIVM, 3720 BA Bilthoven, The Netherlands
11. Department of Laboratory Animal Science, Utrecht University, 3508 TD Utrecht, The Netherlands
12. Swiss Alternatives to Animal Testing (SAAT), 8614 Bertschikon-Zurich, Switzerland
13. Lehrstuhl für Molekulare Tierzucht, Feodor-Lynen-Strasse 25, 81377 Munich, Germany