family (biology) | European Union | European Parliament | World Health Organization | Member of the European Parliament | European Commission | Biology | International Organization for Standardization | World Trade Organization | World Intellectual Property Organization | International Labour Organization | Food and Agriculture Organization | European Space Agency | Charitable organization | International Civil Aviation Organization | World Meteorological Organization | United Nations Industrial Development Organization | International Maritime Organization | European | Interpol (organization) | European Court of Human Rights | European Court of Justice | Organization for Security and Co-operation in Europe | Organization of American States | non-governmental organization | European Economic Community | West Midlands (European Parliament constituency) | National Organization for Women | biology | European People's Party |
Đikić is member of number of organizations including the American Association for the Advancement of Science, New York Academy of Sciences, World Association of Croatian Physicians, American Association for Cancer Research, European Molecular Biology Organization, American Society for Biochemistry and Molecular Biology, International Union Against Cancer and the German Society for Biochemistry and Molecular Biology.