H Iizumi

Development of an ambulatory physical activity memory device and its application for the categorization of actions in daily life.

M Makikawa, M. Makikawa, H. Iizumi, 1995, Medinfo. MEDINFO.

Microprocessor-based memory device for ambulatory heart rate and physical activity recording.

M Makikawa, H Iizumi, K Imai, 1994, Methods of information in medicine.