Naoki Ikegami. Games policy makers and providers play: Introducing case-mix-based payment to hospital chronic care units in Japan. Journal of Health Politics, Policy and Law, 34 (3), p361-380, 2009
John Creighton Campbell, Naoki Ikegami and Soonman Kwon. Policy learning and cross-national diffusion in social long-term care insurance: Germany, Japan, and the Republic of Korea. International Social Security Review, 62(4), p63-80, 2009
Ayumi Igarashi, Naoki Ikegami, Yukari Yamada and Noriko Yamamoto-Mitani. Effect of the Japanese preventive-care version of the Minimum Data Set-Home Care on the health-related behaviors of community-dwelling, frail older adults and skills of preventive-care managers: A quasi-experimental study conducted in Japan. Geriatrics Gerontology International, 9(3), p310-319, 2009
Katherine Berg, Harriet Finne-Soveri, Len Gray, Jean Claude Henrard, John Hidrdes, Naoki Ikegami, et al. Relationship between interRAI HC and the ICF: opportunity of operationalizing the ICF. BMC Health Services Research, 9: 47, 2009
Zhanlian Feng, Hohn P. Hirdes, Trevor F. Smith, Harriet Finne-Soveri, Iris Chi, Jean-Noel Du Pasquier, Ruedi Gilgen, Naoki Ikegami and Vincent Mor. Use of physical restraints and antipsychotic medications in nursing homes: a cross-national study. International Journal of Geriatric Psychiatry, 24(10), p1110-8, 2009
Li H, Borinskaya S, Yoshimura K, Kal'ina N, Marusin A, Stepanov VA, et al. Refined geographic distribution of the oriental. ALDH2*504Lys (nee 487Lys) variant. Ann Hum Genet, 73(Pt3), p335-45, 2009
Saroko Ezoe, Masahiro Toda, Kimio Yoshimura, Aki Naritomi, Rei Den and Kanehisa Morimoto. Relationships of personality and lifestyle with moble phone dependence among female nursing students. Social behavior and personality, 37(2), 231-238, 2009
John Creighton Campbell and Naoki Ikegami. (Chapter 10) Comprehensive Long-Term Care in Japan and Germany. Theodore R. Marmor, et al (Eds.): Policy learning and cross-national comparison, Comparative Studies and the Politics of Modern Medical Care. P265-288, Yale University Press, New Haven, 2009
Naoki Ikegami. (Chapter 6) International Gerontology Asia: Japan. Jeffrey B. Halter, et al(Eds.): Hazzard's Geriatric Medicine and Gerontology-6th ed. P85-87, The McGraw-Hill Companies Inc, NY, 2009