1. World Health Organization. Constitution of the World Health Organization. basic documents, forty-seventh edition. Geneva: The Organization; 2009.
2. International Sanitary Regulations; World Health Organization regulations no. 2.;World Health Organization;World Health Organ Tech Rep Ser,1951
3. World Health Assembly. Revision and updating of the International Health Regulations, WHA48.7, May 8, 1995. Geneva: World Health Organization; 1995.
4. World Health Assembly. Revision of the International Health Regulations. WHA56.28. 2003 May 28. Geneva: World Health Organization; 2003.
5. World Health Organization. Global crises, global solutions—managing public health emergencies of international concern through the revised International Health Regulations; 2002 [cited 2012 May 1]. http://www.who.int/csr/resources/publications/ihr/WHO_CDS_CSR_GAR_2002_4_EN/en/