{HEAD ~ Filtration} of {TAIL ~ blood} in the aorta will usually be conducted while the heart is functioning normally, i.e., without the use of cardiopulmonary bypass 
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{ HEAD ~ Filtration } of { TAIL ~ blood } in the aorta will usually be conducted while the heart is functioning normally , i.e. , without the use of cardiopulmonary bypass
HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH