Jieqin, Zhuang Efficacy and safety of Guhong injection for treating coronary microvascular disease: study protocol for a randomized controlled trial. [electronic resource] - Trials Jan 2020 - 75 p. digital Publication Type: Clinical Trial Protocol; Journal Article ISSN: 1745-6215 Standard No.: 10.1186/s13063-019-3990-3 doi Subjects--Topical Terms: AdultAgedAnti-Inflammatory Agents--administration & dosageChinaCoronary Artery Disease--diagnostic imagingDouble-Blind MethodFemaleGlutamine--administration & dosageHumansInjectionsMaleMiddle AgedMulticenter Studies as TopicPlant Extracts--administration & dosageProspective StudiesRandomized Controlled Trials as TopicTime FactorsTreatment Outcome