1. Nakatani H, Sano T, Iuchi T: Development of vaccination policy in Japan: current issues and policy directions. Jpn J Infect Dis. 2002, 55: 101-111.
2. Enami T, Otsubo H: The Current State of Immunization Administration in Japan. Japan Medical Association Journal. 2010, 53 (2): 111-117.
3. Gomi H, Takahashi H: Why is measles still endemic in Japan?. The Lancet. 2004, 364 (9431): 328-329.
4. Center for Disease Control and Prevention (CDC): Progress toward measles elimination--Japan, 1999-2008. MMWR Morb Mortal Wkly Rep. 2008, 57: 1049-1052.
5. Japan Pediatric Society, Japanese Society of Child Health, Japan Pediatric Association: A written request for implementation of effective control measures of measles epidemics. Submitted to the Ministry of Health, Labor and Welfare in July, 2001 (in Japanese). Infectious Agents Surveillance Report (IASR). 2001, (Acccessed on August 5, 2010), [ http://idsc.nih.go.jp/iasr/22/261/dj2618.html ]