Furthermore, {HEAD ~ the proportion} of {TAIL ~ T cells} to B cells is approximately the same as that of the original blood 
of
Furthermore , { HEAD ~ the proportion } of { TAIL ~ T cells } to B cells is approximately the same as that of the original blood
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH