title: The reproducibility and variability of sequential left ventricular ejection fraction measurements by the nuclear stethoscope.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000503:physiopathology; D002637:Chest Pain / Q000503:physiopathology; D005069:Evaluation Studies as Topic; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging; D006326:Heart Auscultation / Q000592:standards; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology; D011859:Radiography; D013318:Stroke Volume; D013668:Technetium Tc 99m Aggregated Albumin
chemical_list: D013668:Technetium Tc 99m Aggregated Albumin