方法：选择合格冠心病心绞痛患者80例，运用简单随机方法，随机分为治疗组、对照组。
Methods: 80 valid patients were divided into the application therapy group and the control group by the simple randomization.
方法：将符合病例入选标准的116例患者随机分为治疗组、对照组各58例。
Method: The inclusion criteria found 116 cases. The patients were randomly divided into two groups:control group and treatment group(58 cases, each).
合适的随机对照试验是那些纳入超过20例、比较门诊HF患者BNP引导药物治疗组和平常治疗组(对照组)的疗效的研究。
Eligible RCTs were those that enrolled more than 20 patients and involved comparison of BNP-guided drug therapy vs Usual clinical care of the patient with chronic HF in all Outpatient setting.
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