title: Letter: Left ventricular function in chronic obstructive pulmonary disease, with and without cardiac failure.
mesh_terms: D006333:Heart Failure / Q000150:complications / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications / Q000503:physiopathology*; D013147:Spirometry; D014797:Vital Capacity