Autonomic Nervous System Measurement in Hyperbaric Environments Using ECG and PPG Signals. - Alberto Hernando; Maria Dolores Peláez-Coca; María Teresa Lozano; Montserrat Aiger; David Izquierdo; Alberto Sanchez; Maria Isabel Lopez-Jurado; Ignacio Moura; Joaquin Fidalgo; Jesús Lázaro 002; Eduardo Gil (IEEE J. Biomed. Health Informatics, 2019)