A drop in the cassette sealing bladder pressure can compromise {HEAD ~ the seal} of {TAIL ~ the dialysis pumping cassette} relative to the dialysis instrument 
of
A drop in the cassette sealing bladder pressure can compromise { HEAD ~ the seal } of { TAIL ~ the dialysis pumping cassette } relative to the dialysis instrument
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH