Comparative analysis of bioimpedance methods for the nutritional assessment of respiratory patients - Ramos, Maria del Pilar Cejudo; Garcia, Aixa; Naranjo-Hernandez, David; Roa, Laura; Barbarov-Rostan, Gerardo; Sanchez, Rosa Vazquez; Marquez-Martin, Eduardo; Reina-Tosina, Luis Javier; Ruiz, Francisco Ortega (EUROPEAN RESPIRATORY JOURNAL, 2016)