Diagnosis of diastolic dysfunction in the emergency department: really at reach for minimally trained sonologists? A call for a wise approach to heart failure with preserved ejection fraction diagnosis in the ER

急诊科舒张功能障碍的诊断：真的只需接受过最低限度培训的超声医师就能做到吗？呼吁在急诊科对射血分数保留型心力衰竭的诊断采取明智的方法。