Zhang, Shengsuo Thoracic epidural anesthesia improves outcomes in patients undergoing cardiac surgery: meta-analysis of randomized controlled trials. [electronic resource] - European journal of medical research Mar 2015 - 25 p. digital Publication Type: Journal Article; Meta-Analysis; Review ISSN: 2047-783X Standard No.: 10.1186/s40001-015-0091-y doi Subjects--Topical Terms: Anesthesia, Epidural--methodsHumansRandomized Controlled Trials as TopicThoracic Surgical Procedures--methodsThoracic VertebraeTreatment Outcome