Akira Yajima

Time-frequency analysis of fetal heartbeat fluctuation using wavelet transform.

Yoshitaka Kimura, Nobuo Yaegashi, Kunihiro Okamura, 1998, American journal of physiology. Heart and circulatory physiology.

Determining the Cost-Effectiveness of Mass Screening for Cervical Cancer Using Common Analytic Models

Shinji Sato, A. Yajima, Shinji Sato, 1999, Acta Cytologica.

Alteration in the Low-Frequency Domain in Power Spectral Analysisof Fetal Heart Beat Fluctuations

Yoshitaka Kimura, Nobuo Yaegashi, Kunihiro Okamura, 1999, Fetal Diagnosis and Therapy.