Akematsu Y., Tsuji M. Empirical Analysis of Reduction of Medical Expenditures by e-Health in the Aging Society. Journal of e-Health Technology and Application 2009; 7(1): 17-23.
Akematsu Y., Tsuji M. Empirical Analysis of the Reduction of Medical Expenditures by e-health users. Journal of telemedicine and Telecare 2009; 15(3): 109-11.