What is the Most Cost-effective Strategy to Screen for Left Ventricular Systolic Dysfunction: Natriuretic Peptides, the Electrocardiogram, Hand-held Echocardiography, Traditional Echocardiography, or Their Combination?
What is the Most Cost-effective Strategy to Screen for Left Ventricular Systolic Dysfunction: Natriuretic Peptides, the Electrocardiogram, Hand-held Echocardiography, Traditional Echocardiography, or Their Combination?
筛选左心室收缩功能障碍最佳费用效益比的策略：钠尿肽、心电图、手持式超声心动图、传统超声心动图或联合应用这些方法？