The following publications are possibly variants of this publication:
- Non-contact Screening System with Two Microwave Radars in the Diagnosis of Sleep Apnea-Hypopnea SyndromeMasayuki Kagawa, Katsuhiko Ueki, Akira Kurita, Hirokazu Tojima, Takemi Matsui. medinfo 2013: 263-267 [doi]
- The Development of a Dual-Radar System with Automatic Hypopnea Threshold Optimization for Contact-Free Sleep Apnea-Hypopnea Syndrome ScreeningShinji Gotoh, Takemi Matsui, Yoshikazu Naka, Osamu Kurita. js, 2018, 2018. [doi]
- Non-contact diagnostic system for sleep apnea-hypopnea syndrome based on amplitude and phase analysis of thoracic and abdominal Doppler radarsMasayuki Kagawa, Hirokazu Tojima, Takemi Matsui. mbec, 54(5):789-798, 2016. [doi]