Smart Vest for Respiratory Rate Monitoring of COPD Patients Based on Non-Contact Capacitive Sensing. - David Naranjo-Hernández; Alejandro Talaminos-Barroso; Javier Reina-Tosina; Laura M. Roa; Gerardo Barbarov-Rostán; Pilar Cejudo-Ramos; Eduardo Márquez-Martín; Francisco Ortega Ruiz (Sensors, 2018)