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All procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted. All experiments were approved by the Ethical Review Process Applications Panel of the University of Glasgow, and were performed in accordance with the European Community directive 86\/609\/EC and the UK Animals (Scientific Procedures) Act 1986. This article does not contain any studies with human participants performed by any of the authors.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}}]}}