Can further benefit be achieved by adding flosequinan to patients with congestive heart failure who remain symptomatic on diuretic, digoxin, and an angiotensin converting enzyme inhibitor?

• 应用利尿剂、地高辛和血管紧张素转换酶抑制剂而仍有症状的充血性心力衰竭患者加用福洛奎南是否能够取得进一步疗效？