title: Biofeedback system with interchangeable modules for applied research and clinical practice in underdeveloped countries.
authors: A R
authors: AR
authors: Zapata-Ferrer
authors: O
authors: O
authors: Danglada
authors: I A
authors: IA
authors: Pérez-Guerrero
mesh_terms: D001676:Biofeedback, Psychology / Q000295:instrumentation*; D003906:Developing Countries; D004582:Electronics, Medical / Q000295:instrumentation; D006801:Humans