3) The European Agency for the Evaluation of Medicinal Products, Human Medicines Evaluation Unit : Committee for Proprietary Medicinal Products (CPMP), Note for Guidance on Harmonisation of Requirements for Influenza Vaccines (CPMP/BWP/214/96). London, 1997 http://www.emea.europa.eu/docs/en_GB/document_library/Scientific_guideline/2009/09/WC500003945.ndf)