(1) T. Tamura, T. Togawa, M. Ogawa, and M. Yoda : “Fully Automated Health Monitoring System in the Home”, <i>Medical Engineering & Physics</i>, 20, pp. 573-579 (1998)
(4) B. W. Carlson, V. J. Neelon, and H. Hsiao : “Evaluation of a Non-Invasive Respiratory Monitoring System for Sleeping Subjects”, Physiological Measurement, Vol. 20, pp. 53-63 (1999)
(5) K. Nakajima, H. Yamakose, H. Kuno, M. Nambu, T. Irie, M. Higuchi, A. Sahashi, and T. Tamura : “A Pillow-Shaped Respiration Monitor”, The Society of Life Support Technology, Vol. 13, No. 1, pp. 2-7 (2001-1) (in Japanese)