title: Systolic time intervals in chronic obstructive pulmonary disease.
mesh_terms: D000328:Adult; D000368:Aged; D002245:Carbon Dioxide / Q000097:blood; D004562:Electrocardiography; D006321:Heart / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D010701:Phonocardiography; D012129:Respiratory Function Tests; D013147:Spirometry; D014797:Vital Capacity
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen