Doba N, Hinohara S, Yanai H, Saiki K, Takagi H, Tsuruwaka M, Hirano M, and Matsubara H: The New Elder Citizen Movement in Japan, 36-59;
Matsumoto Y edit.: Faces of Aging - The Lived Experiences of the Elderly in Japan, Stanford Univ. Press, California, 2011.05(290•Å)
Takagi, Hirofumi: Medical Information System, Comprehensive Report for the JICA Project for Model Development of Comprehensive HIV/AIDS Prevention and Care, 1-28, 5 September, 2001
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Yanai, H., Inaba, Y., Takagi, H., and Yamamoto, S.: Factor analysis of cancer mortalities for selected sites in 24 countries in the world, U.S.-Japan Cancer Research Program Conference on Biostatistics in the Study on Human Cncer, proceeding(40 p.), May 1978 (Hiroshima and Fukuoka)
Inaba, Y., Yanai, H., Takagi, H. and Yamamoto,S.: A study on the geographical pattern of cancer mortality for selected sites by means of factor analysis, the 24th International Geographical Congress IGU symposium on Geography of Health, 1980 (Tokyo)
Inaba, Y., Iuchi, M., Takagi, H., Ichikawa, S., and Namihisa, T.: A follow-up study on liver cirrhosis with schistosoma japonicum, XII Scientific Meeting of the International Epidemiological Association, 1990 (August, California, USA)
Takagi, H.:A Study on the Day Care Center for PHA Groups in Northern Thailand, Joint Research Workshop in the 6th Joint Seminar on Biomedical Sciences, 34, 2009 (October 12-14, Tokyo)