title: Behavior of systolic intervals in chronic obstructive pulmonary disease.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006321:Heart / Q000503:physiopathology; D006352:Heart Ventricles; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D013599:Systole