{HEAD ~ The present invention} overcomes {TAIL ~ the multistage problems} by providing a single two row stage containing one row of blades in which there is some axial and some centrifugal blood flow, and a second row of blades in which the blood flow is purely axial 
overcomes
{ HEAD ~ The present invention } overcomes { TAIL ~ the multistage problems } by providing a single two row stage containing one row of blades in which there is some axial and some centrifugal blood flow , and a second row of blades in which the blood flow is purely axial
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH