Gill Langley, Caren Broadhead, Krys Bottrill, Robert Combes, Roger Ewbank, Penny Hawkins, Robert Hubrecht, Maggy Jennings, Carol Newman, Sally Rowe, Jacqueline Southee, Martin Todd and Les

All scientists who use animals in scientific procedures have an ethical obligation to ensure that the research aims cannot be
achieved in other ways. However, in many countries, including those of the European Union, this responsibility is also a legislative requirement (1, 2).
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