Human photoplethysmogram through the Morse graph: Searching for the saddle point in experimental data - Miyaji, Tomoyuki; Sviridova, Nina; Aihara, Kazuyuki; Zhao, Tiejun; Nakano, Akimasa (Chaos (Woodbury, N.Y.), 2019)
Keywords: Electrocardiography - methods; Heart Rate - physiology; Humans; Models, Theoretical; Monitoring, Physiologic - methods; Photoplethysmography - methods; Signal Processing, Computer-Assisted