1. Ministry of Economy, Trade and Industry in Japan. 〈http://www.med-device.jp/pdf/state/event/20140303/1_meti.pdf〉. [Accessed 11 October 2016].
2. Ministry of Health in Japan, Labor and Welfare. 〈http://www.mhlw.go.jp/topics/yakuji/2013/nenpo/〉. [Accessed 11 October 2016].
3. Medical imaging trends and implementation: issues and challenges for developing countries;MONHD-NOR;J Health Inform Dev Ctries,2010
4. Geographic distribution of healthcare resources, healthcare service provision, and patient flow in Japan: a cross sectional study;Shinjo;Social Sci Med,2012
5. Equity in the distribution of CT and MRI in China: a panel analysis;He;Int J Equity Health,2013