More particularly, {HEAD ~ the invention} is directed to {TAIL ~ an implantable delivery system} for the prolonged delivery of an active agent to a fluid environment in a natural or artificial body cavity 
is directed to
More particularly , { HEAD ~ the invention } is directed to { TAIL ~ an implantable delivery system } for the prolonged delivery of an active agent to a fluid environment in a natural or artificial body cavity
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH