By deflating the lungs pulmonologists help the cardiologists. A literature review N. Siafakas; A. Trachalaki;

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Use of the Borg dyspnea scale to identify dynamic hyperinflation during the 6-minute walking test in individuals with moderate-severe COPD: A pilot study A.P.V.M. de Freitas; L.F. Belo; L. Martinez; N.A. Hernandes; F. Pitta;