| http://www.w3.org/ns/prov#value | - Catheter 27 is tunnelled subcutaneously and the distal end 30 and tip 31 are positioned between vertebrae 36 to infuse the agent, drug or other fluid into either the epidural space 37 or the intrathecal space 38, depending on whether distal end 30 and tip 31 are passed through the arachnoid membrane 39.
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