Freise, Hendrik Thoracic epidural analgesia with low concentration of bupivacaine induces thoracic and lumbar sympathetic block: a randomized, double-blind clinical trial. [electronic resource] - Anesthesiology Dec 2008 - 1107-12 p. digital Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 1528-1175 Standard No.: 10.1097/ALN.0b013e31818db16c doi Subjects--Topical Terms: AdultAgedAnalgesia, EpiduralAutonomic Nerve Block--methodsBupivacaine--administration & dosageDouble-Blind MethodFemaleHumansLumbosacral Region--physiologyMaleMiddle AgedProspective StudiesSkin Temperature--drug effectsThorax--drug effects