RT Journal Article SR Electronic T1 Hydrodynamics of the Spinal Epidural Space JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 368 OP 369 DO 10.1016/j.rapm.2007.03.006 VO 32 IS 4 A1 Rocco, Angelo G. A1 Philip, James H. YR 2007 UL http://rapm.bmj.com/content/32/4/368.2.abstract AB